1 c. uncooked elbow macaroni
2 c. diced chicken
1 c. mild cheddar cheese, shredded
1 c. cream of chicken soup
1/2 c. milk
1 (4 oz.) can mushroom stems & pieces, drained
1/2 tsp. prepared mustard
1 c. soft bread crumbs
2 tbsp. melted butter

Cook macaroni as directed on package, then drain. Mix all ingredients together except the bread crumbs and butter. Place in a buttered casserole. Toss the bread crumbs in the melted butter. Sprinkle over the top. Bake, uncovered, in a 350 degree oven for 50 minutes.