1 (12 oz.) pkg. shell macaroni
8 oz. sour cream
2/3 c. mayonnaise
1/2 lb. Velveeta cheese
1 sm. onion, chopped
1/2 c. pimento
1/2 c. bell pepper
1 can cream of mushroom soup

Cook macaroni until done; drain and rinse. Add all ingredients and heat over low heat until cheese is melted. Pour into a buttered casserole dish and bake in a 375 degree oven until hot and bubbly, about 15 minutes.