In a large soup pot, heat some olive oil over medium heat. Add the chopped onion and minced garlic, sautéing until soft and fragrant, about 3-5 minutes.
Add the ground turkey (or beef) to the pot. Cook until browned, breaking it up with a spoon, approximately 5-7 minutes. Drain excess fat if necessary.
Stir in the diced bell peppers and cook for another 5 minutes until they start to soften.
Add the quinoa, diced tomatoes (with juice), vegetable broth, Italian seasoning, salt, and pepper. Bring to a boil, then reduce the heat and simmer, covered, for about 20-25 minutes, or until the quinoa is cooked through and the bell peppers are tender.
Taste and adjust the seasoning if needed.
Serve the soup hot in bowls, topped with shredded mozzarella cheese and garnished with fresh parsley.
Notes
Feel free to customize the vegetables and seasonings to your taste.
Keyword bell peppers, comfort food, ground turkey, quinoa, soup