1 (11 oz.) can cream of mushroom soup
1 pkg. unflavored Knox gelatin
3 tsp. cold water
1 (8 oz.) pkg. cream cheese
1 c. mayonnaise
1 c. chopped celery
1 sm. onion, finely chopped
1/2 lb. frozen or canned crab meat (or imitation crab)

Heat soup (undiluted) and dissolve gelatin in water; add remaining ingredients and mix together in saucepan. Pour into 4 cup mold; refrigerate overnight. Serve with crackers and/or fresh vegetables.