Rhubarb Dump Cake

1 lb. fresh rhubarb, chopped (about 4 cups)

1/2 cup  sugar

1 pkg. (3 oz.) Strawberry Flavor Gelatin

1 pkg.  (2-layer size) white cake mix

1 cup water

1/3 cup  butter, melted

3/4 cup thawed Whipped Topping

HEAT oven to 350ºF.  
PLACE rhubarb in 13x9-inch baking dish; sprinkle with sugar and dry gelatin mix. 
BEAT cake mix, water and butter with whisk until well blended. Pour over rhubarb; spread to completely cover rhubarb. 

BAKE 45 min. or golden brown. Serve warm topped with COOL WHIP