Preheat Oven:

1. Preheat your oven to 400°F (200°C).
2. Lightly grease a baking dish or line it with parchment paper.

Season the Chicken:

1. In a small bowl, mix together the garlic powder, Italian seasoning, salt, pepper, and paprika (if using).
2. Rub this seasoning blend evenly over the chicken breasts.

Prepare the Zucchini:

1. In a separate bowl, toss the zucchini slices with 1 tablespoon of olive oil.
2. Season with a pinch of salt and pepper.

Arrange in the Baking Dish:

1. Place the seasoned chicken breasts in the prepared baking dish.
2. Arrange the zucchini slices around the chicken, ensuring they are evenly spread out.

Drizzle with Olive Oil:

1. Drizzle the remaining tablespoon of olive oil over the chicken and zucchini.

Bake:

1. Bake in the preheated oven for 20-25 minutes, or until the chicken is fully cooked (internal temperature of 165°F or 74°C) and the zucchini is tender.

Garnish and Serve:

1. Remove the dish from the oven and let the chicken rest for a few minutes.
2. Garnish with fresh lemon slices.
3. Serve immediately.