One pot chicken and penne parmesan

My family loves this. It has saved the day many times when I haven't felt good enough to cook, its quick, easy and taste so yummy!

1 tablespoon butter or margarine
3/4lb boneless, skinless chicken breast, cut into 1 inch cubes
1-3/4 cups(14-1/2 oz. can) chicken broth
1/2 (8oz) package penne pasta uncooked
1 pkg (16 oz) frozen broccoli, carrots, and cauliflower mix
1/4 teaspoon ground black pepper
1 can condensed cream of chicken soup
3/4 cup milk
3/4 cup grated Parmesan cheese, divided ( some times I have used Cheddar cheese when we didn't have Parmesan and it still tasted yummy!)

in 5-quart saucepan over medium head, melt butter, add chicken. Cook 5 minutes or until no longer pink. add broth;heat to boiling. Add uncooked pasta, vegetables, and pepper, stirring to coat pasta with liquid. Heat to boiling, reduce head. Cover, simmer 13 minutes, stirring every 2 minutes, or until pasta is tender and most liquid is absorbed. Meanwhile, in a medium bowl, stir together soup, milk and 1/2 cup cheese until smooth, stir into chicken mixture. heat until mixture just comes to a boil; sprinkle with remaining cheese. MAKES 8 SERVINGS.