Yes, it sounds disgusting. No, it is not disgusting. Some people call these things jello salads, or jello fluff, or something similar. I try to call it jello fluff around here, coz hubby gets all grossed out by "congealed salad".
1 can crushed pineapple (20 oz, DO NOT DRAIN)
2 C buttermilk
8 oz tub of whipped topping
2 small boxes jello (any flavor, strawberry is my fave)
Heat Pineapple in juice, bring to a boil. Add jello and mix well. Remove from heat and add Buttermilk, stir. Stir in whipped topping. Pour into a sizable container, something around 13x9 sized or a bowl that will hold about the same amount. Refrigerate, preferably overnight so it has enough time to set up, but at least 4-6 hours. Low fat buttermilk and low fat cool whip both work just fine in this recipe.