1 can tomato soup (heat to boiling, do not dilute). 1 package Knox gelatin, mixed with 1/4 cup cold water. Add to hot soup. 1 (8 ounce) cream cheese. Add to soup and mix until smooth. Add 1/2 cup chopped celery, 1/2 cup green pepper, 1/2 cup chopped onion, 1 cup mayonnaise and 1 can shrimp (shredded). Put into mold and let set.