1 lb. shelled shrimp (cooked)
1 1/2 cup macaroni shells, cooked and drained
4 oz. (1 cup) american cheese, cubed
1/2 cup chopped celery
1/4 cup chopped green pepper
2 tbsp. onion, chopped
1/2 cup mayonnaise or salad dressing
1/2 cup dairy sour cream
3 tbsp. vinegar
3/4 tsp. salt
a dash of tabasco

Mix all ingredients and refrigerate.