Banana-Raisin French Toast

Mash banana coarsely with a fork in a small, shallow bowl. Stir in orange-juice concentrate. Spread the banana mixture over 2 slices of bread and top with the remaining 2 slices of bread, forming 2 sandwiches.

Whisk together egg whites and milk in a shallow dish; add the sandwiches and soak for about 20 seconds. Turn the sandwiches over and soak for 20 seconds longer. Transfer the sandwiches to a plate.

Stir together yogurt and maple syrup (or honey) in a small bowl. Set aside.

Melt 1/2 teaspoon butter in a nonstick skillet over low heat. Tilt the pan to swirl the butter around the skillet. Place the sandwiches in the pan using a metal spatula, and cook until the underside is browned, 5 to 7 minutes. Lift the sandwiches and add the remaining 1/2 teaspoon butter. Turn over and cook until browned, 5 to 7 minutes longer. Serve with the sweetened yogurt.