Easy Chicken Tetrazzini for a Large Family

Name: Easy Chicken Tetrazzini for a Large Family
Prep time: 20 min
Cook time: 1 h 25 min
Total time: 1 h 45 min
Cuisine: American
Ingredients: 5 skinless, boneless chicken breasts; 2 tablespoons butter; 1 medium onion, chopped; 1 (10.5 ounce) can cream of mushroom soup; 1 (10.5 ounce) can cream of chicken soup; 1 (10.5 ounce) can cream of celery soup; 1.25 pounds shredded sharp Cheddar cheese, divided; 1 cup half-and-half; 1 (7 ounce) jar pimentos; 0.5 cup white cooking wine; 1 (3 ounce) can sliced mushrooms, drained; 2 tablespoons chopped fresh parsley; 1 teaspoon steak sauce; 1 pound angel hair pasta; 1 pinch paprika