Step 1

In a 4.5-quart or bigger soup pot or a dutch oven, heat 2 tablespoons of olive oil over medium-high heat. Toss chicken with 3/4 teaspoons of salt and 1/4 teaspoons of pepper and add to the pot. Cook until browned, about 5-7 minutes, stirring frequently. Remove to a plate.

Step 2

Reduce heat to medium. Add the remaining 1 tablespoon of oil if needed. Add onions, carrots, and celery with a pinch of salt. Cook until the veggies are beginning to soften, about 4-5 minutes. Stir in garlic and oregano and cook until fragrant, about 30 seconds, stirring constantly.

Step 3

Add chicken stock and bay leaves. Bring to a simmer. Stir in pasta and chicken. Season soup with salt and pepper, to taste. Simmer partially covered until pasta and veggies are tender, about 10-12 minutes. Stir the soup occasionally so the pasta does not stick.

Step 4

Remove and discard the bay leaves. Stir in lemon zest, lemon juice, and parsley.