Overnight Chicken Tetrazzini

1 Whole rotisserie chicken, chopped (4 cups)
1 (10 3/4 oz) Can condensed cream of chicken soup
1 (10 3/4oz) Can condensed cream of mushroom soup
1 1/4 Cups milk
1 1/4 Cups chicken broth
1 Teaspoon onion powder
1 Teaspoon garlic powder
8 Ounces elbow macaroni, uncooked
1 Cup grated parmesan

Spray a 9" x 13" pan with cooking spray.
In a large bowl combine cooked chicken, cream of chicken soup, cream of mushroom soup, milk, chicken broth, onion powder, and garlic powder; stir in uncooked pasta.
Pour mixture into prepared pan; cover and refrigerate overnight.
Remove casserole from refrigerator and uncover.
Preheat oven to 350�F.
Top casserole with grated parmesan and bake uncovered, for 1 hour.