Prep the fruit: Grate the apples and mash the banana. Rinse the cranberries and raisins.

Combine wet ingredients: In a large bowl, whisk together the eggs.

Combine dry ingredients: In a separate bowl, combine the oats, baking powder, and cinnamon.

Mix everything together: Combine the wet ingredients, dry ingredients, and all the fruit into a large bowl. Stir until well combined.

Bake: Pour the mixture into a greased baking dish. Sprinkle with your favorite nuts. Bake in a preheated oven at 360°F (180°C) for approximately 35-40 minutes, or until golden brown and set.

Serve: Serve warm with Greek yogurt and fresh berries if desired.