Instructions: Preheat the oven to 350 degrees. Coat a 10- by 15-inch rimmed baking sheet or jelly-roll pan with nonstick cooking spray.

Pour the prepared cake batter onto the baking sheet or pan. Bake for 22 to 24 minutes, or until a wooden toothpick inserted in the center comes out clean. Allow to cool, then invert onto a large platter. Cut crosswise into 3 sections, each measuring 5 by 10 inches.

Reserve 1 cup whipped topping for the frosting. Spread some of the remaining whipped topping over the middle section of cake, completely covering it. Lay 2 bananas parallel to each other over the whipped topping. Spoon more whipped topping over the bananas, then place the third banana on top. Cover with the remaining whipped topping.

Gently bring up the 2 side pieces of cake from the outer edges to form the bungalow roof. Frost the cake with the reserved whipped topping, then cover with the sprinkles. Refrigerate for at least 1 hour, then slice and serve.

This recipe yields 10 servings.

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