Introduction & Inspiration
There’s something undeniably satisfying about the classic combination of savory Italian sausage cooked with sweet bell peppers and onions. This recipe for Slow Cooker Italian Sausage and Peppers takes that beloved Italian-American flavor profile and makes it ridiculously easy by letting the slow cooker do all the simmering! It promised a minimal-prep, maximum-flavor meal perfect for busy days or casual entertaining.
My inspiration often comes from seeking out comforting, crowd-pleasing dishes that don’t require a lot of active time in the kitchen. Sausage and peppers is a classic for a reason – it’s flavorful, hearty, and versatile. Adapting it to a “dump-and-go” slow cooker method seemed like the ultimate way to enjoy this favorite with almost zero fuss.
My goal is to provide a comprehensive guide to this incredibly simple recipe, showing how easily you can achieve tender sausage and perfectly softened vegetables swimming in a light, savory tomato-herb broth. It’s ideal for filling crusty rolls or serving over pasta for a complete, satisfying meal.
Let’s dive into this super simple slow cooker take on a classic!
Nostalgic Appeal / Comfort Food Connection
Italian Sausage and Peppers is a dish deeply woven into the fabric of Italian-American comfort food and nostalgic experiences. For many, it evokes memories of bustling street fairs, summer festivals, family barbecues, or simple, satisfying suppers. Piled onto a crusty roll, it’s a handheld feast that feels both celebratory and down-to-earth.
The familiar aroma of sausage cooking with peppers, onions, garlic, and herbs is instantly recognizable and incredibly inviting. It’s a smell that promises hearty flavor and satisfying eating. The combination is classic comfort – savory meat, sweet vegetables, simple seasonings.
Using the slow cooker method adds another layer of comfort – the set-it-and-forget-it ease that allows a delicious meal to come together while you’re busy elsewhere. It feels like traditional, slow-simmered flavor achieved with modern convenience.
This recipe delivers all the comforting, nostalgic flavors of classic sausage and peppers, made accessible through the effortless magic of slow cooking.
Homemade Focus (Simplicity & Flavor Meld)
This Slow Cooker Italian Sausage and Peppers recipe is a testament to the beauty of simple, homemade meals where the ingredients do the talking. Although incredibly easy to assemble, the process involves combining fresh vegetables, flavorful sausage, and basic pantry staples, allowing them to gently cook and meld together in the slow cooker over several hours.
I love recipes that prioritize ease without sacrificing the essence of a dish. This “dump-and-go” approach requires minimal prep – just slicing the vegetables and mincing the garlic. Yet, by slowly simmering these components together from raw, you achieve a depth of flavor infusion that quick stovetop methods might miss.
You’re controlling the type of sausage (mild, hot, sweet), the colors of the peppers, and the final seasoning, giving it a personalized homemade touch. The slow cooker gently tenderizes the sausage and softens the vegetables perfectly within the light tomato and herb broth they create together.
It’s a perfect example of how homemade cooking doesn’t need to be complicated to be delicious and satisfying. The slow cooker facilitates a wonderfully flavorful result with remarkable ease.
Flavor Goal
The primary flavor goal of this Slow Cooker Italian Sausage and Peppers is a savory, slightly sweet, and herbaceous medley featuring tender cooked Italian sausage, exceptionally soft sweet bell peppers and onions, all bathed in a light, garlicky tomato broth infused with oregano and basil. It aims for a rustic, comforting, well-balanced flavor profile perfect for sandwiches or pasta.
The Italian sausage (mild or spicy) provides the core savory, often fennel-accented, flavor and richness. Slow cooking ensures it becomes tender and releases flavor into the broth.
The bell peppers and onions cook down significantly, becoming very soft and contributing a natural sweetness that balances the savory sausage and acidic tomatoes.
Minced garlic adds essential aromatic depth, while the undrained diced tomatoes create a light broth base.
Dried oregano and basil provide the classic Italian herbaceous notes. Salt and pepper round everything out, ensuring a flavorful result ready to be soaked up by bread or pasta.
Ingredient Insights
Let’s explore the key ingredients in this easy Italian-American classic:
- Italian sausage (mild or spicy): The heart of the dish. Can use links (kept whole or sliced after cooking) or bulk sausage (crumbled slightly). Pork is traditional, but chicken or turkey Italian sausage works for a lighter option. Flavor varies greatly by brand and type (sweet vs. hot).
- Bell peppers (any color), sliced: Provide sweetness and bulk. Red, yellow, and orange are sweeter than green.
- Onion, sliced: Adds essential aromatic sweetness as it softens.
- Garlic cloves, minced: Provides pungent depth.
- Diced tomatoes (canned), undrained: Creates the light sauce/broth and adds acidity. Using undrained provides crucial liquid for slow cooking.
- Dried oregano & Dried basil: Classic Italian herbs that complement sausage and peppers.
- Salt and pepper: To season, adjusting based on the saltiness of the sausage.
- Crusty rolls or pasta: For serving.
- Fresh parsley, for garnish: Adds a touch of freshness and color.
The type of Italian sausage selected will heavily influence the final flavor and spice level.
Essential Equipment
This recipe is wonderfully minimal on equipment needs:
- A Slow Cooker (Crockpot): The main cooking appliance. Needs to be large enough to hold the sausage and vegetables comfortably (5-6 quart is usually good).
- A cutting board and knife: For slicing peppers, onion, garlic, and parsley. Also for slicing cooked sausage links if serving that way.
- A can opener.
- Measuring cups and spoons.
- Tongs or a large slotted spoon: For serving the sausage and peppers.
Just basic tools and your trusty slow cooker!
List of Ingredients with Measurements
Here’s the complete list of ingredients, with precise measurements:
- 1.5 lbs Italian sausage (mild or spicy, links or bulk)
- 2 bell peppers (any color), sliced
- 1 onion, sliced
- 3 cloves garlic, minced
- 1 can (14 oz) diced tomatoes, undrained
- 1 tsp dried oregano
- 1 tsp dried basil
- Salt and pepper, to taste
- Crusty rolls or pasta, for serving
- Fresh parsley, for garnish
- (Optional: ~1/4 cup water or broth added to the bottom if your slow cooker runs very hot or mixture seems dry initially)
These quantities make enough for about 4-6 generous servings, perfect for sandwiches or over pasta.
Prep your vegetables before you begin layering.

Step-by-Step Instructions (Ultimate Dump-and-Go!)
Let’s walk through this incredibly simple slow cooker process:
1. Layer Ingredients in Slow Cooker:
- Place the Italian sausage (whole links or crumbled bulk) in the bottom of the slow cooker insert.
- Add the sliced bell peppers, sliced onion, and minced garlic over and around the sausage.
- Pour the can of undrained diced tomatoes over everything.
- Sprinkle the dried oregano, dried basil, salt, and pepper evenly over the top.
2. Stir Gently:
- Give the ingredients a gentle stir to roughly combine the seasonings and vegetables with the sausage and tomatoes.
3. Cook:
- Cover the slow cooker securely with the lid.
- Cook on the LOW heat setting for 6-7 hours OR on the HIGH heat setting for 3-4 hours. The sausage should be fully cooked (internal temperature of 160°F/71°C for pork) and the vegetables should be very tender.
4. Prepare for Serving:
- Once cooked, you can serve the sausage links whole, or remove them and slice them before returning them to the slow cooker with the peppers and sauce. If using bulk sausage, it should already be incorporated.
- Stir the mixture gently. Taste the sauce and adjust salt and pepper if necessary.
5. Serve:
- Serve the hot Italian Sausage and Peppers mixture generously spooned into crusty rolls or served over cooked pasta (like penne, rigatoni, or spaghetti).
- Garnish with fresh chopped parsley before serving.
Comfort food couldn’t be easier!

Troubleshooting
Slow cooking is forgiving, but here are some considerations:
- Problem: Dish is too watery.
- Solution: Peppers and onions release a lot of liquid. If the final sauce is much thinner than desired, remove the lid for the last 30-60 minutes of cooking on HIGH to allow evaporation. Serving with a slotted spoon also works well for sandwiches.
- Problem: Vegetables are completely disintegrated/mushy.
- Solution: Cooked too long, especially on HIGH. Opt for the LOW setting for better texture control. Cut veggies into slightly thicker slices next time. However, very soft peppers and onions are characteristic of this slow-cooked style.
- Problem: Sausage seems greasy.
- Solution: Different sausages have varying fat content. You can skim excess fat from the top of the cooking liquid before serving. Browning the sausage first (see Tips) allows you to drain fat before slow cooking.
- Problem: Flavor is one-note or bland.
- Solution: Use a high-quality, flavorful Italian sausage (hot or sweet). Ensure adequate seasoning with salt, pepper, and herbs. Adding a splash of red wine or balsamic vinegar can add complexity. Browning the sausage/veggies first dramatically deepens flavor.
Adjust cooking time for desired vegetable tenderness.
Tips and Variations
Let’s customize this Italian-American classic:
- Tip (Highly Recommended for Flavor): Brown the Italian sausage links or bulk sausage in a skillet before adding to the slow cooker. Sauté the sliced onions and peppers in the same skillet for a few minutes before adding them. This extra step develops much richer flavors.
- Variation: Use a mix of sweet and hot Italian sausage for balanced flavor and heat.
- Tip: Add a splash (1/4 cup) of dry red or white wine along with the tomatoes for more depth of flavor.
- Variation: Include other vegetables like sliced mushrooms or zucchini (add during the last hour or two as they cook faster).
- Tip: Use fresh basil and oregano instead of dried; add chopped fresh herbs during the last 30 minutes of cooking or stir in generously at the end.
- Variation: Serve on toasted rolls topped with melted Provolone or Mozzarella cheese for an extra decadent sandwich.
- Variation: Add a can of drained cannellini beans during the last hour for extra fiber and substance.
Make it your perfect sausage and peppers dish!
Serving and Pairing Suggestions
Slow Cooker Italian Sausage and Peppers is a versatile and hearty meal component.
Serving: Serve hot.
Classic Pairings:
- On Rolls: Pile high into sturdy, crusty Italian rolls, hoagie rolls, or sub rolls.
- Over Pasta: Serve over spaghetti, penne, rigatoni, or ziti.
- Over Polenta: Creamy polenta makes a delicious base.
- With Rice: Simple white or brown rice works too.
Sides:
- A simple green salad with Italian vinaigrette.
- Garlic bread for dipping.
Perfect for easy family dinners, game days, or casual entertaining.
Nutritional Information
This dish’s nutrition varies significantly based on sausage type (pork vs chicken/turkey, fat content) and serving style. Info is approximate (per serving of sausage/peppers mixture only, assuming 6 servings):
- Calories: 300-500+
- Fat: 18-35+ grams (highly dependent on sausage)
- Saturated Fat: 6-15+ grams
- Cholesterol: 50-90+ mg
- Sodium: 700-1200+ mg (Sausage, canned tomatoes, added salt contribute significantly)
- Total Carbs.: 8-15 grams
- Dietary Fiber: 2-4 grams
- Sugars: 5-10 grams (natural from veggies/tomatoes)
- Protein: 15-25+ grams
High in protein and potentially high in fat (especially saturated) and sodium, depending heavily on the sausage choice. Serving over pasta or on a large roll adds significant carbohydrates and calories.
PrintSlow Cooker Italian Sausage and Peppers
Make classic Italian Sausage and Peppers the easy way in your slow cooker! This simple dump-and-go recipe delivers tender sausage and veggies in a flavorful sauce
Ingredients
Here’s the complete list of ingredients, with precise measurements:
- 1.5 lbs Italian sausage (mild or spicy, links or bulk)
- 2 bell peppers (any color), sliced
- 1 onion, sliced
- 3 cloves garlic, minced
- 1 can (14 oz) diced tomatoes, undrained
- 1 tsp dried oregano
- 1 tsp dried basil
- Salt and pepper, to taste
- Crusty rolls or pasta, for serving
- Fresh parsley, for garnish
- (Optional: ~1/4 cup water or broth added to the bottom if your slow cooker runs very hot or mixture seems dry initially)
These quantities make enough for about 4-6 generous servings, perfect for sandwiches or over pasta.
Prep your vegetables before you begin layering
Instructions
Let’s walk through this incredibly simple slow cooker process:
1. Layer Ingredients in Slow Cooker:
- Place the Italian sausage (whole links or crumbled bulk) in the bottom of the slow cooker insert.
- Add the sliced bell peppers, sliced onion, and minced garlic over and around the sausage.
- Pour the can of undrained diced tomatoes over everything.
- Sprinkle the dried oregano, dried basil, salt, and pepper evenly over the top.
2. Stir Gently:
- Give the ingredients a gentle stir to roughly combine the seasonings and vegetables with the sausage and tomatoes.
3. Cook:
- Cover the slow cooker securely with the lid.
- Cook on the LOW heat setting for 6-7 hours OR on the HIGH heat setting for 3-4 hours. The sausage should be fully cooked (internal temperature of 160°F/71°C for pork) and the vegetables should be very tender.
4. Prepare for Serving:
- Once cooked, you can serve the sausage links whole, or remove them and slice them before returning them to the slow cooker with the peppers and sauce. If using bulk sausage, it should already be incorporated.
- Stir the mixture gently. Taste the sauce and adjust salt and pepper if necessary.
5. Serve:
- Serve the hot Italian Sausage and Peppers mixture generously spooned into crusty rolls or served over cooked pasta (like penne, rigatoni, or spaghetti).
- Garnish with fresh chopped parsley before serving.
Comfort food couldn’t be easier
Recipe Summary and Q&A
Let’s conclude with a summary and common questions:
Recipe Summary:
Slow Cooker Italian Sausage and Peppers is an incredibly easy dish made by slow-cooking Italian sausage (links or bulk) with sliced bell peppers, onions, garlic, undrained diced tomatoes, and Italian herbs until the sausage is cooked and the vegetables are very tender. It’s typically served hot in crusty rolls or over pasta.
Q&A:
Q: Can I make this ahead of time? A: Yes, this dish is excellent for making ahead. Cook completely, cool, store refrigerated, and reheat gently on the stovetop or back in the slow cooker on LOW. Flavors often meld and improve overnight.
Q: How do I store leftovers? A: Store leftovers in an airtight container in the refrigerator for up to 3-4 days.
Q: Can I freeze this? A: Yes, it freezes well. Cool completely, store in freezer-safe containers or bags for up to 3 months. Thaw overnight in the refrigerator and reheat gently.
Q: Do I have to use Italian sausage? A: Italian sausage provides the characteristic flavor. You could substitute other smoked sausages (like kielbasa or andouille) or even chicken sausage, but the final taste will differ.
Q: Should I brown the sausage first? A: This recipe prioritizes ease by skipping browning. However, browning the sausage first will significantly deepen the flavor and render some fat. It’s a recommended step if you have the extra time.
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