Shrimp Dip 1 can shrimp 1 can tomato soup 8oz. cream cheese 1 env. Knox gelatin 1 cup mayo. 1/2 cup chopped celery 1/2 cup chopped onion Simmer cream cheese and tomato soup till smooth and creamy. Remove from heat add Knox gelatin. In a bowl mix shrimp, mayo, celery, and onion. Add shrimp mix when cream cheese is cool.