Preheat oven to 350 degrees. Prepare cake mix as directed on box ... 9"x13" pan. Sprinkle rhubarb over top of cake batter. ... cool before turning upside down or spoon or warm from pan if you can't wait.
Arrange rhubarb in 9 x 13 inch ... the marshmallows. Pour cake batter over all. Bake for ... completely cold, turn upside down and serve with whipped cream. ... Cherries with cherry Jello.
Spread rhubarb in a 9x13 pan. Sprinkle ... over that. Mix cake according to instructions and pour ... minutes, then turn upside down. You can line pan ... will come out better.