Prepare the Chicken: Cut the boneless, skinless chicken breast into ½-inch cubes and season them with salt and black pepper. Set aside.

Brown the Chicken: Heat olive oil in a large pot over medium heat. Add the seasoned chicken and sauté for 3-4 minutes until golden brown. Remove and set aside.

Sauté the Vegetables: In the same pot, add more olive oil if necessary and toss in the onion, carrot, and celery. Sauté for 2-3 minutes until onion is translucent.

Add Aromatics: Add minced garlic and Italian seasoning to the pot and cook for 1 minute until fragrant.

Combine Broth and Chicken: Pour in chicken broth and return the browned chicken. Bring to a gentle boil, then simmer for 10 minutes.

Cook the Pasta: Stir in the stelline pasta and cook uncovered for 6-8 minutes until tender, stirring occasionally.

Final Seasoning and Serve: Adjust seasoning as needed, ladle into bowls, and garnish with fresh parsley.