3 ripe bananas
1 tbsp. no-fat margarine 
1 tbsp. lemon juice
1 tbsp. dark brown sugar
¼ cup rum
 
Preheat oven to 450ºF. Peel and cut bananas into chunks. Spray baking dish with nonstick spray. Put bananas in dish and dot with margarine and bake for 10 minutes. Remove from oven and sprinkle with brown sugar and lemon juice. Return to oven and bake until sugar is melted (about 5 minutes). Heat the rum in a small saucepan for 3 minutes, and pour over bananas and ignite. Serve when flames have diminished.