Light One-Pot Philly Cheesesteak Casserole

· 1 pound (450 g) ground beef, 90% lean

· 2 bell peppers, sliced

· 1 onion, sliced

· 2 cloves garlic, crushed

· 1 teaspoon Montreal steak seasoning (add more to taste)

· 2 teaspoons Italian seasoning

· 10 ounces (285 g) rotini (I used SmartTaste)

· 1 1/2 cups (375 ml) chicken stock, low-sodium

· 1 cup (250 ml) water

· 6 ounces (170 g) cream cheese, fat-free

· 6 ounces (170 g) cheddar, 75% reduced-fat

· 1 tablespoon yellow mustard