Emerald Salad

One 8-3/4 oz can crushed pineapple

3 oz pkg lime flavored gelatin

2 cups tiny marshmallows

2 oz pkg dessert topping mix

Drain pineapple, reserving syrup. Add water to syrup to make two cups, heat to boiling. Add gelatin, stir to dissolve, Add pineapple, pour into 10x6x1-1/2 inch baking dish. Top immediately with marshmallows. Prepare dessert topping according to package directions. Spread over marshmallows just before serving.