-large egg, 80 calories; the -banana, 100 Put very ripe unpeeled bananas in a plastic bag in the freezer. Remove as needed to make this easy blender drink or dessert: Remove 1 banana from the freezer and allow it to defrost just enough to remove the peel. Cut the partly-thawed, peeled banana into chunks and put it in the blender or food processor with a few drops of vanilla extract and coconut flavoring. Add skim milk or low-fat yogurt and blend smooth. A small amount of milk or yogurt will create a "frozen custard." Add more milk or yogurt for a milkshake. Add a whole egg for a high-protein instant breakfast or lunch. (Top with a dash of cinnamon or nutmeg, if desired.) Skim milk has approximately 45 calories per 1/2 cup; plain low-fat yogurt, calories.