Go on and give it a try. Remember though that you must use canned pineapple–fresh pineapple will not gel.
Cottage Cheese and Pineapple Salad
1 large can grated pineapple (translation for modern times: crushed)
2 cups sour cream
2 cups cottage cheese
2 packages lemon jello
1 cup hot water
Dissolve Jell-0 in hot water. Cool until syrupy. Add other ingredients. Chill until set.