5 c. cut-up rhubarb
3 oz. strawberry Jello
1 c. sugar
3 c. miniature marshmallows
1 yellow cake mix

Cut up rhubarb and put into bottom of greased 9x13 inch cake pan. Sprinkle 3 oz. strawberry Jello over rhubarb, then 1 cup sugar over Jello, then 3 cups marshmallows over sugar. Mix yellow cake mix as on box directions and pour over marshmallows. Bake for 1 hour at 350 degrees. Dump out of pan for upside down cake.