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Slow-Cooked Italian Chicken

Introduction & Inspiration

I’m always on the hunt for slow cooker recipes that deliver big, satisfying flavors with minimal effort, especially those that result in tender chicken and a delicious sauce perfect for spooning over pasta. This recipe for Slow-Cooker Italian Chicken immediately caught my eye! It features boneless, skinless chicken breasts simmered gently with a savory blend of tomatoes, green peppers, onions, garlic, and a unique mix of seasonings including chili powder and ground mustard, all creating a rich sauce that’s thickened at the end.

My inspiration for exploring this particular dish came from wanting a comforting, Italian-American style chicken and pasta meal that was largely hands-off. The idea of letting the slow cooker do the work of tenderizing the chicken and melding the sauce flavors, then quickly thickening that sauce for a luscious coating, sounded like the perfect weeknight dinner solution.

My goal is to guide you step-by-step through making this flavorful and incredibly easy chicken dish. We’ll cover the simple slow-cooking process and the final step of creating that lovely, rich sauce from the cooking juices. It’s a fantastic way to get a hearty, homemade-tasting meal on the table with very little fuss.

Let’s get this easy Italian-inspired chicken simmering in the slow cooker!

Nostalgic Appeal / Comfort Food Connection

This Slow-Cooker Italian Chicken taps into the comforting nostalgia of simple, savory chicken and pasta dinners. Dishes featuring tender chicken simmered in a tomato-based sauce with peppers and onions are a beloved staple in many Italian-American households and casual restaurants. It evokes feelings of warmth, family meals, and satisfying, unpretentious home cooking.

The specific seasoning blend in this recipe, while perhaps a bit unique for a strictly “Italian” label with its chili powder and ground mustard, adds a familiar, comforting American-style savory depth that many will appreciate. It’s reminiscent of those “secret ingredient” family recipes that are passed down.

Using the slow cooker to achieve fall-apart tender chicken enhances the comfort factor, promising a stress-free cooking experience and a meal that feels like it simmered with care all day. Serving it over a bed of hot cooked pasta is the ultimate comforting presentation.

Making and enjoying this dish feels like savoring a hearty, flavorful, and deeply satisfying comfort food classic, made incredibly easy for modern lifestyles.

Homemade Focus (Slow-Cooked Tenderness, From-Scratch Sauce)

This Slow-Cooker Italian Chicken recipe is a wonderful example of creating a flavorful, homemade meal with straightforward techniques, even when starting with simple ingredients. The focus is on slow-cooking the chicken to perfection and then transforming the cooking juices into a rich, thickened sauce from scratch.

I love recipes that utilize the flavorful byproducts of cooking. Here, after the chicken gently simmers with tomatoes, vegetables, and seasonings, the resulting cooking liquid isn’t discarded; it becomes the base for a delicious homemade sauce. Skimming the fat and then thickening these juices with a simple flour and water slurry is a classic homemade sauce-making technique.

While the initial cooking is hands-off in the slow cooker, the final step of creating the sauce on the stovetop gives you control over its consistency and ensures a perfectly thickened, glossy finish that beautifully coats the chicken and pasta.

From placing the chicken in the slow cooker to simmering and thickening the final sauce, the process emphasizes simple, effective homemade steps that result in a cohesive and deeply flavorful meal.

Flavor Goal

The primary flavor goal of this Slow-Cooker Italian Chicken is tender, juicy chicken breasts enveloped in a savory, slightly tangy, and aromatic tomato-based sauce with softened green peppers, onions, and a unique blend of seasonings. It aims for a comforting, well-balanced Italian-American style dish perfect for serving over pasta.

The boneless, skinless chicken breasts become exceptionally tender during the slow cooking process, absorbing the flavors of the surrounding sauce.

The sauce is key: a base of reduced-sodium chicken broth, stewed tomatoes (cut up for texture), and tomato sauce provides a rich tomato flavor and body. Sautéed (or slow-cooked in this case) green pepper, green onion, and minced garlic add essential aromatic depth and sweetness.

The seasoning blend – chili powder, ground mustard, pepper, garlic powder, and onion powder – creates a unique savory profile with a subtle warmth and tang that complements the tomato base.

The final thickened sauce should be smooth, rich, and flavorful, clinging nicely to the chicken and pasta. Optional Parmesan cheese and fresh basil add a final layer of salty, cheesy, and herbaceous brightness.

Ingredient Insights

Let’s explore the components of this flavorful slow-cooker dish:

  • Boneless, skinless chicken breast halves: Lean protein that becomes tender when slow-cooked in liquid. Using 4-ounce portions ensures relatively even cooking.
  • Reduced-sodium chicken broth: Provides a savory liquid base for the sauce.
  • Stewed tomatoes, cut up (canned) & Tomato sauce (canned): Create the rich tomato foundation. Stewed tomatoes offer chunkier texture.
  • Green bell pepper, chopped & Green onion, chopped & Garlic clove, minced: The aromatic vegetables that soften and flavor the sauce.
  • Seasonings (Chili powder, Ground mustard, Pepper, Garlic powder, Onion powder): This specific blend provides a unique savory, slightly tangy, and warm flavor profile. Note: Salt is not explicitly listed for the initial seasoning of chicken or sauce, but likely implied or covered by broth/tomato products/seasoning powders. Taste and adjust at the end.
  • All-purpose flour & Cold water: Combined to make a slurry for thickening the cooking juices into a gravy-like sauce.
  • Hot cooked pasta: The classic serving suggestion.
  • Optional: Grated Parmesan cheese & Minced fresh basil: For garnish, adding classic Italian flavors.

The unique seasoning blend (chili powder, mustard) gives this “Italian” chicken its distinct character.

Essential Equipment

This recipe requires your slow cooker and a saucepan for finishing the sauce:

  • A 3-quart Slow Cooker (Crockpot) (as specified): Suitable for 4 chicken breasts.
  • A Large saucepan: Essential for skimming fat and thickening the cooking juices into a sauce.
  • A Cutting board and knife: For chopping green pepper, green onion, mincing garlic, and potentially cutting up stewed tomatoes.
  • Measuring cups and spoons.
  • A Small bowl or cup and a whisk/fork: For making the flour-water slurry.
  • A Ladle or large spoon: For transferring juices and serving.
  • A Pot: For cooking pasta.
  • A Colander.

Standard kitchen tools are mostly sufficient.

List of Ingredients with Measurements

Here’s the complete list of ingredients, with precise measurements:

  • 4 boneless skinless chicken breast halves (4 ounces each)
  • 1 can (14.5 ounces) reduced-sodium chicken broth
  • 1 can (14.5 ounces) stewed tomatoes, cut up
  • 1 can (8 ounces) tomato sauce
  • 1 medium green pepper, chopped
  • 1 green onion, chopped (white and green parts)
  • 1 garlic clove, minced
  • 3 teaspoons chili powder
  • 1 teaspoon ground mustard
  • 1/2 teaspoon pepper
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1/3 cup all-purpose flour
  • 1/2 cup cold water
  • Hot cooked pasta, for serving

Optional for Serving:

  • Grated Parmesan cheese
  • Minced fresh basil

These quantities are designed for about 4 servings.

Have vegetables chopped and seasonings measured before starting.

Step-by-Step Instructions (Slow-Cooking to Saucy Perfection!)

Let’s create this easy and flavorful Italian-inspired chicken:

1. Prepare Ingredients for Slow Cooker:

  • Place the 4 boneless, skinless chicken breast halves into a 3-quart slow cooker.
  • In a medium bowl, combine the reduced-sodium chicken broth, cut-up stewed tomatoes (with their juice), tomato sauce, chopped green pepper, chopped green onion, minced garlic, chili powder, ground mustard, ½ teaspoon pepper, ¼ teaspoon garlic powder, and ¼ teaspoon onion powder. Stir well to combine all the sauce ingredients.
  • Pour this prepared sauce mixture evenly over the chicken breasts in the slow cooker.

2. Slow Cook the Chicken:

  • Cover the slow cooker securely with its lid.
  • Cook on the LOW heat setting for 4-5 hours, or until the chicken is very tender and cooked through (internal temperature should reach 165°F/74°C).

3. Prepare Chicken and Start Sauce Thickening:

  • Once the chicken is tender, carefully remove the chicken breasts from the slow cooker using tongs or a slotted spoon. Place them on a plate and keep warm (you can tent them loosely with foil).
  • Pour the cooking juices from the slow cooker into a large saucepan.
  • Skim any visible fat from the surface of the juices in the saucepan.

4. Thicken the Sauce:

  • In a small bowl or cup, combine the ⅓ cup of all-purpose flour and ½ cup of cold water. Whisk or stir vigorously until completely smooth and no lumps of flour remain (this is your slurry).
  • Gradually whisk the smooth flour-water slurry into the cooking juices in the saucepan.
  • Place the saucepan over medium-high heat and bring the mixture to a boil, stirring constantly.
  • Once boiling, continue to cook and stir for about 2 minutes, or until the sauce has noticeably thickened to a gravy-like consistency.

5. Serve:

  • Serve the tender chicken breasts (whole or sliced/shredded if preferred) with the hot, thickened sauce generously spooned over.
  • This dish is best served over hot cooked pasta.
  • If desired, top individual servings with grated Parmesan cheese and minced fresh basil.

A comforting, saucy chicken and pasta meal!

Troubleshooting

Slow cooker dishes with thickened sauces require a bit of attention:

  • Problem: Chicken breast is dry.
    • Solution: Cook on LOW for the recommended time. Chicken breasts are lean and can dry out if overcooked, even in a slow cooker. Check for doneness (165°F) at the earlier end of the time range. Keeping them submerged in sauce helps.
  • Problem: Sauce (cooking liquid before thickening) is too thin.
    • Solution: The flour slurry will thicken it significantly. If after thickening it’s still too thin for your liking, you can simmer it a bit longer on the stovetop to reduce further (before or after adding slurry, though better before to avoid over-thickening).
  • Problem: Thickened sauce is lumpy.
    • Solution: Ensure the flour and cold water slurry was whisked completely smooth before adding it to the hot juices. Add the slurry gradually while whisking constantly into the juices. If lumps persist, you can try straining the sauce through a fine-mesh sieve.
  • Problem: Flavor is bland.
    • Solution: Use good quality canned tomato products and ensure seasonings (chili powder, mustard, garlic/onion powder, pepper) were measured correctly. Taste the final thickened sauce and adjust salt, pepper, or even a pinch more chili powder if needed. The optional Parmesan and fresh basil at serving make a big flavor impact.

Proper slurry technique is key for smooth, thick sauce.

Tips and Variations

Let’s customize this easy Italian-style chicken:

  • Tip: Use boneless, skinless chicken thighs instead of breasts for even juicier, more flavorful meat that’s more forgiving of longer cooking times.
  • Variation: Add other vegetables to the slow cooker along with the green pepper and onion, such as sliced mushrooms, diced carrots, or zucchini chunks.
  • Tip: For a deeper flavor, briefly sauté the chopped onion, green pepper, and minced garlic in a tablespoon of olive oil in a skillet before adding them to the slow cooker with the other sauce ingredients.
  • Variation: Make it spicier by adding ½ – 1 teaspoon of red pepper flakes along with the chili powder, or use a spicier chili powder.
  • Tip: If you prefer a very smooth sauce without tomato chunks, use plain tomato sauce instead of stewed tomatoes, or briefly blend the stewed tomatoes before adding.
  • Variation: Instead of pasta, serve the chicken and sauce over creamy polenta, mashed potatoes, or rice.
  • Variation: Stir in a splash of dry white or red wine into the sauce ingredients in the slow cooker for added complexity.

A wonderfully adaptable recipe for a comforting chicken dinner!

Serving and Pairing Suggestions

This Slow-Cooker Italian Chicken is a hearty and satisfying main course, especially over pasta.

Serving: Serve the tender chicken pieces hot, generously topped with the thickened savory sauce, over a bed of your favorite cooked pasta.

Classic Pairings:

  • Pasta Shapes: Linguine, fettuccine, penne, rotini, or even spaghetti.
  • Garlic Bread: Essential for soaking up every last bit of that delicious sauce!
  • Salad: A simple Italian green salad with a vinaigrette or a Caesar salad provides a refreshing contrast.
  • Parmesan & Basil: Don’t skip the optional grated Parmesan cheese and fresh basil for garnish – they add so much flavor and freshness.
  • Wine: A medium-bodied Italian red wine like Chianti or Sangiovese, or a crisp Italian white like Pinot Grigio. Drink with moderation.

Perfect for a comforting family meal or a casual dinner party.

Nutritional Information

This dish features lean chicken breast and a tomato-based sauce. Nutritional info is approximate (per serving of chicken and sauce, assuming 4 servings, before pasta):

  • Calories: 300-400
  • Fat: 10-15 grams
  • Saturated Fat: 2-4 grams
  • Cholesterol: 90-130 mg
  • Sodium: 700-1000+ mg (Canned tomatoes, sauce, broth, and seasonings contribute significantly)
  • Total Carbs.: 15-25 grams (from flour, veggies, tomato products)
  • Dietary Fiber: 3-5 grams
  • Sugars: 8-12 grams (natural from tomatoes, plus any in sauces)
  • Protein: 35-45+ grams (Excellent source!)

A high-protein meal. Sodium content can be notable due to canned goods and seasoning mixes; using reduced-sodium broth (as specified) and controlling added salt helps. Carbohydrates increase significantly when served over pasta.

Print

Slow-Cooked Italian Chicken

Make easy Slow-Cooker Italian Chicken! Tender chicken breasts simmered in a savory tomato sauce with peppers, onions, and unique seasonings, then thickened.

  • Author: Evelyn

Ingredients

Scale

Here’s the complete list of ingredients, with precise measurements:

  • 4 boneless skinless chicken breast halves (4 ounces each)
  • 1 can (14.5 ounces) reduced-sodium chicken broth
  • 1 can (14.5 ounces) stewed tomatoes, cut up
  • 1 can (8 ounces) tomato sauce
  • 1 medium green pepper, chopped
  • 1 green onion, chopped (white and green parts)
  • 1 garlic clove, minced
  • 3 teaspoons chili powder
  • 1 teaspoon ground mustard
  • 1/2 teaspoon pepper
  • 1/4 teaspoon garlic powder
  • 1/4 teaspoon onion powder
  • 1/3 cup all-purpose flour
  • 1/2 cup cold water
  • Hot cooked pasta, for serving

Optional for Serving:

  • Grated Parmesan cheese
  • Minced fresh basil

These quantities are designed for about 4 servings.

Have vegetables chopped and seasonings measured before starting

Instructions

Let’s create this easy and flavorful Italian-inspired chicken:

1. Prepare Ingredients for Slow Cooker:

  • Place the 4 boneless, skinless chicken breast halves into a 3-quart slow cooker.
  • In a medium bowl, combine the reduced-sodium chicken broth, cut-up stewed tomatoes (with their juice), tomato sauce, chopped green pepper, chopped green onion, minced garlic, chili powder, ground mustard, ½ teaspoon pepper, ¼ teaspoon garlic powder, and ¼ teaspoon onion powder. Stir well to combine all the sauce ingredients.
  • Pour this prepared sauce mixture evenly over the chicken breasts in the slow cooker.

2. Slow Cook the Chicken:

  • Cover the slow cooker securely with its lid.
  • Cook on the LOW heat setting for 4-5 hours, or until the chicken is very tender and cooked through (internal temperature should reach 165°F/74°C).

3. Prepare Chicken and Start Sauce Thickening:

  • Once the chicken is tender, carefully remove the chicken breasts from the slow cooker using tongs or a slotted spoon. Place them on a plate and keep warm (you can tent them loosely with foil).
  • Pour the cooking juices from the slow cooker into a large saucepan.
  • Skim any visible fat from the surface of the juices in the saucepan.

4. Thicken the Sauce:

  • In a small bowl or cup, combine the ⅓ cup of all-purpose flour and ½ cup of cold water. Whisk or stir vigorously until completely smooth and no lumps of flour remain (this is your slurry).
  • Gradually whisk the smooth flour-water slurry into the cooking juices in the saucepan.
  • Place the saucepan over medium-high heat and bring the mixture to a boil, stirring constantly.
  • Once boiling, continue to cook and stir for about 2 minutes, or until the sauce has noticeably thickened to a gravy-like consistency.

5. Serve:

  • Serve the tender chicken breasts (whole or sliced/shredded if preferred) with the hot, thickened sauce generously spooned over.
  • This dish is best served over hot cooked pasta.
  • If desired, top individual servings with grated Parmesan cheese and minced fresh basil.

A comforting, saucy chicken and pasta meal!

Did you make this recipe?

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Recipe Summary and Q&A

Let’s conclude with a summary and common questions:

Recipe Summary:

Slow-Cooker Italian Chicken features boneless, skinless chicken breasts cooked gently in a slow cooker with a savory sauce made from chicken broth, stewed tomatoes, tomato sauce, green pepper, green onion, garlic, and a unique blend of seasonings including chili powder and ground mustard. After the chicken is cooked and removed, the cooking juices are skimmed of fat and thickened on the stovetop with a flour-water slurry. The tender chicken is served with this rich sauce, typically over hot cooked pasta, and optionally garnished with Parmesan cheese and fresh basil.

Q&A:

Q: Can I make this dish ahead of time? A: Yes. You can cook the chicken and prepare the sauce (up to thickening it) a day ahead. Store chicken and unthickened juices separately or together in the refrigerator. Reheat gently, then thicken the sauce and serve with freshly cooked pasta.

Q: How do I store leftovers? A: Store leftover chicken and sauce in an airtight container in the refrigerator for up to 3-4 days. Store leftover pasta separately if possible, or it may absorb a lot of sauce.

Q: Can I freeze this dish? A: Yes, the cooked chicken in its (unthickened or thickened) sauce freezes well. Cool completely, store in freezer-safe containers for up to 3 months. Thaw overnight in the refrigerator and reheat gently. Cook pasta fresh when serving.

Q: Can I use bone-in chicken pieces? A: Yes, bone-in, skin-on chicken pieces (like thighs or drumsticks) would be very flavorful. Brown them first in a skillet for better texture and color before adding to the slow cooker. You may need to slightly increase cooking time. Remove skin before serving if desired.

Q: What if I don’t want to use chili powder or ground mustard? A: These give the dish its unique flavor profile. If omitting, you might substitute with more traditional Italian herbs like extra oregano, basil, or some marjoram. The taste will be different but still enjoyable.