In a large pot, heat the olive oil over medium heat. Add onion, carrots, celery, salt and pepper. Cook for 5 to 7 minutes until the vegetables are softened.
1 tablespoon olive oil, 1 cup finely diced yellow onion , 1 cup shredded or matchstick carrots, ½ cup finely diced celery , ½ teaspoon kosher salt, ¼ teaspoon coarse ground black pepper
Add garlic and cook, stirring, for an additional 1 minute or until fragrant.
2 cloves garlic, minced
Add the chicken, chicken broth, water, basil, oregano, thyme, and red pepper flakes to the pan. Bring soup to a boil over high heat, and then reduce to a simmer (medium-low heat).
1.5 pounds boneless skinless chicken breasts , 4 cups reduced-sodium chicken broth, 1 cup water, 1 teaspoon dried basil, ½ teaspoon dried oregano, ½ teaspoon dried thyme, ¼ teaspoon crushed red pepper flakes, optional
Simmer, partially covered, for 15 to 20 minutes, or until chicken reaches an internal temperature of 165ºF. Remove chicken from soup. When it’s cool enough to handle, dice or shred it.
Meanwhile, while the chicken is cooling, add gnocchi to the simmering soup. Cook according to the package instructions, usually about 3 to 5 minutes, or until the gnocchi float to the top.
1 pkg. (16 oz.) potato gnocchi
Stir in the shredded chicken and spinach leaves; cook until spinach is wilted, about 2 minutes. Turn heat to low.
2 cups roughly chopped fresh spinach
Add the cornstarch to the half & half; stir until smooth. Slowly stir cornstarch mixture into the soup. Stir in Parmesan cheese. Continue to cook until soup is steaming hot and thickened slightly. Taste the soup and adjust seasoning as needed. Keep at a low simmer until ready to serve. Do not boil.
1 cup half & half, 1 tablespoon cornstarch, ¼ cup grated Parmesan cheese
Serve garnished with extra Parmesan cheese.
Video
Notes
Using cooked or leftover chicken: You’ll need about 3 cups of cooked or rotisserie chicken. Add the cooked chicken to the soup after the vegetables have simmered. After you add the chicken, bring the soup to a simmer again before you add the gnocchi.
Heavy cream option: For a richer, thicker soup, use heavy cream in place of the half and half.