Sauté the Vegetables: In a large pot, heat a little olive oil over medium heat. Add the chopped onion, diced carrots, and celery. Cook until softened, about 5 minutes, stirring occasionally.
Add Garlic: Once the veggies are soft, stir in the minced garlic and cook for an additional minute until fragrant.
Incorporate Chicken and Broth: Now it’s time for the main star! Add the chicken, diced tomatoes (with juices), chicken broth, dried oregano, and bay leaf. Turn up the heat and bring the pot to a boil.
Simmer: Once boiling, reduce the heat and let the soup simmer. Allow it to cook for about 20 minutes, or until the chicken is cooked through.
Shred the Chicken: Carefully remove the chicken from the pot. Let it cool slightly, then shred the meat with two forks and return it back into the soup.
Cook the Pasta: Stir in the pasta and cook according to package instructions, generally about 8-10 minutes, until al dente.
Season and Serve: Add salt and pepper to taste. Serve the soup hot, garnished with fresh parsley for a pop of color and flavor.