Slice the chicken sausage into ½-inch thick rounds.
1 pound pre-cooked chicken sausage
Heat olive oil in a large skillet over medium heat. Add sliced bell peppers and onion. Cook until softened, about 5-7 minutes.
2 tablespoons olive oil, 2 bell peppers, 1 medium onion
Stir in minced garlic and cook for 1 minute until fragrant.
2 cloves garlic
Add tomato paste and cook for another minute, stirring constantly.
1 tablespoon tomato paste
Pour in the diced tomatoes. Stir in dried oregano, dried basil, salt, and black pepper. Bring to a simmer.
1 14.5 ounce can diced tomatoes, 1 teaspoon dried oregano, 1 teaspoon dried basil, to taste salt, to taste black pepper
Add the sliced chicken sausage to the skillet. Stir to combine. Reduce heat to low, cover, and simmer for 10-15 minutes.
1 pound pre-cooked chicken sausage
Serve hot. Garnish with fresh chopped parsley.
2 tablespoons fresh parsley