Mix 2 packages of GREEN Jello according to package directions. Pour into large flat casserole dish and allow to become firm.

Center Layer:

1 pkg. lemon Jello
1 c. boiling water

Melt 15 marshmallows in the above.

1/2 c. sugar
1 sm. can crushed pineapple
1/2 pt. whipped cream

Mix above (center layer ingredients) and allow to cool and set slightly. Spread over green Jello layer. Mix two packages of RED Jello according to package directions and pour over center layer. Chill and serve.