1/2 pkg. elbow macaroni
1 c. (packed) sharp grated cheese
1 tbsp. chopped pimento
1 tbsp. chopped bell pepper
1 sm. onion, grated or chopped
1 can cream of mushroom soup
1/2 can water
1/2 c. milk
1/2 c. mayonnaise

Boil macaroni according to box instructions (approximately 9 minutes). Drain macaroni. Mix all ingredients together. Bake at 350 degrees for 30 minutes.