Jamie's Creamy Baked Chicken Stroganoff

Heat oven to 350°F.

In 10-inch nonstick skillet, melt butter over medium-high heat. Cook mushrooms in butter 3 to 4 minutes, stirring occasionally, until mushrooms are tender. Remove from skillet, and reserve.

In same skillet, heat hot water, milk, and the seasoning mix and uncooked pasta (from Hamburger Helper box) to boiling. Reduce heat; cover and simmer about 12 minutes, stirring occasionally, until pasta is tender. Remove from heat. Stir in cream sauce (from Hamburger Helper box) and cooked mushrooms.

Spray 13x9-inch glass or ceramic baking dish with cooking spray. Spread pasta mixture in baking dish. Top with chicken breasts.

Bake 25 to 30 minutes or until juice of chicken is clear when center of thickest part is cut (at least 165°F), sprinkling with cheese during last 10 minutes of baking. Sprinkle with parsley. Cool 5 minutes before serving.