Creating a flavorful Chicken Sausage Skillet is straightforward. Follow these steps for a perfect meal:

1. Heat the Oil: In a large skillet, heat the olive oil over medium heat.
2. Cook the Sausage: Add the sliced chicken sausage to the skillet. Cook until browned and heated through, typically for about 5-7 minutes.
3. Sauté the Onions: Stir in the diced onion and cook until translucent, approximately 3-4 minutes.
4. Add Peppers: Mix in the sliced red and yellow bell peppers. Sauté for an additional 5 minutes until they begin to soften.
5. Incorporate Garlic: Add the minced garlic and sauté for about 1 minute, until fragrant.
6. Add Spinach: Toss in the chopped spinach. Stir and cook for another 2-3 minutes until wilted.
7. Season: Sprinkle the Italian seasoning, salt, and pepper over the skillet. Mix well to ensure all ingredients are coated in flavors.
8. Serve Hot: Once the vegetables are tender and the sausage is fully cooked, remove from heat. Transfer to a serving dish, garnishing with fresh parsley if desired.

These steps will guide you effortlessly to prepare this delicious one-pan meal.