Cook the penne pasta according to package instructions.

In a large skillet, add the chicken breasts and cook over medium heat until browned.

Add cream cheese, chicken broth, garlic powder, onion powder, salt, and pepper to the skillet.

Stir in the cooked penne pasta and cheddar cheese, mixing until well combined.

Fold in chopped green onions and adjust seasoning as needed.

Serve hot, garnished with additional green onions if desired.