Creating Sheet-Pan Chicken Sausage, Peppers and Onions is simple when you follow these easy steps:

1. Preheat the Oven: Preheat your oven to 400°F (200°C).
2. Prepare the Pan: Line a large baking sheet with parchment paper or lightly grease it with cooking spray.
3. Slice the Sausage: Cut the chicken sausage into bite-sized pieces and place them on the baking sheet.
4. Add Vegetables: Arrange the sliced bell peppers and onions around the sausage on the sheet pan.
5. Season: Drizzle olive oil over the sausage and vegetables. Then, sprinkle garlic powder, Italian seasoning, salt, and pepper evenly across the ingredients.
6. Toss to Combine: Gently toss everything together on the sheet pan to ensure even coating of seasonings and oil.
7. Bake: Place the sheet pan in the preheated oven and bake for 25-30 minutes, or until the sausage is cooked through and the vegetables are tender.
8. Stir Halfway: At the halfway mark, give the mixture a quick stir to promote even cooking.
9. Check for Doneness: Ensure the chicken sausage reaches an internal temperature of 165°F (75°C).
10. Garnish and Serve: Once cooked, remove from the oven, garnish with fresh parsley if desired, and serve hot.

These straightforward steps will guide you in creating a delicious and colorful meal that everyone will love.