4 c. chopped rhubarb
1 c. sugar
1 (3 oz.) box strawberry Jello
1 1/2 c. water (1 c. if rhubarb is frozen)
1 pkg. yellow cake mix
1/2 c. butter

Place rhubarb in buttered 9 x 13 inch pan. Sprinkle sugar and Jello. Sprinkle cake mix over this, add butter in small pieces. Do not mix. Bake at 350 degrees for 50 minutes. Serve with Cool Whip.