Place the olive oil in a large saucepan and bring to medium heat. Add the onion and sauté until translucent, 5-7 minutes.
Add the garlic and cook until fragrant, about 30 seconds.
Add the ground chicken and red pepper. Cook until the chicken is no longer pink.
Add the mushrooms and sauté until tender.
Add the tomatoes, basil. parsley, salt and pepper. Reduce heat and simmer for 20-25 minutes.