Lemon-Lime Jell-O Salad 1 small box lime Jell-O 1 small box lemon Jell-O 1 small can crushed pineapple, NOT drained 1/2 package miniature marshmallows 3 ounces cream cheese Mix lemon Jell-O with 1 cup boiling water and stir for 5 minutes until well dissolved. Gradually add 3/4 cup water to softened cream cheese, add all to lemon Jell-O. Add crushed pineapple and juice and marshmallows to lemon Jell-O. Let start to set and stir and add 1 cup Cool Whip. Let set up overnight. Mix 1 cup boiling water with lime Jell-O. Stir well for 5 minutes. Add ice cubes to quick set and pour carefully over top of lemon Jell-O mixture. When well set cut into square and serve on lettuce leaf.