Turkey Sausage Casserole

Ingredients

• 1/2 cup finely chopped onion
• 2 teaspoons butter, divided
• 1 pound low-fat smoked turkey sausage, cut into 1/4-inch slices
• 1 package (10 ounces) spiral noodles, cooked and drained
• 1/2 pound fresh mushrooms, sliced
• 1 can (10-3/4 ounces) reduced-fat reduced-sodium condensed cream of chicken soup, undiluted
• 1 can (10-3/4 ounces) condensed cheddar cheese soup, undiluted
• 1 cup fat-free evaporated milk
• 1/2 cup crushed reduced-fat butter-flavored crackers