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Peanut Butter, Banana and Jam Baked Oatmeal

This easy Peanut Butter, Banana and Jam Baked Oatmeal is a warm, comforting, and filling breakfast that you'll want to make again and again. What a fun and tasty way to eat your oats!
Prep Time5 mins
Cook Time35 mins
Cooling Time15 mins
Total Time55 mins
Servings: 6 squares
Calories: 243kcal
Author: Michelle / Now Cook This!


  • 1 cup mashed bananas, about 2 medium bananas
  • 2 tablespoons peanut butter
  • 2 tablespoons light brown sugar
  • 1 teaspoon vanilla extract
  • 1 large egg
  • 1 cup unsweetened almond milk
  • cups old-fashioned rolled oats
  • 1 teaspoon cinnamon
  • 1 teaspoon baking powder
  • pinch salt
  • cooking spray
  • ½ cup jam, your favorite kind
  • additional peanut butter, for garnish, optional
  • banana slices, for garnish, optional


  • Preheat the oven to 350°F.
  • In a large bowl, combine the mashed bananas, peanut butter, light brown sugar, vanilla, and egg. Stir until well-combined.
  • Add the almond milk and stir until incorporated.
  • Add the oatmeal, cinnamon, baking powder, and salt. Stir until well-combined.
  • Spray a 1½-quart baking dish with cooking spray (I use a dish that measures approximately 9x7 inches); pour the oatmeal mixture into the dish.
  • Bake for 30 to 35 minutes or until golden brown and set in the middle (a toothpick or knife inserted in the center should come out clean or with a few moist crumbs). The edges will usually have pulled away from the sides of the baking dish as well.
  • Remove from the oven and let it rest for 10 to 15 minutes. Note: This will allow the baked oatmeal to cool off a bit and firm up so you can cut it into squares, but it will still be warm when served. When the oatmeal is super hot right out of the oven, it will be more loose, and it might fall apart..
  • Spread the jam evenly over the top of the oatmeal; cut into 6 squares. Best when served warm.
  • If desired, garnish each piece with extra peanut butter and sliced banana.

Recipe Notes

  • I prefer the texture of regular old-fashioned rolled oats, but quick oats will work too (you may have to reduce the cooking time just a bit). Don't use instant or steel-cut oats.
  • You can make this recipe vegan by using ground flaxseed instead of the egg. Take 1 tablespoon of ground flaxseed and mix it with 3 tablespoons of warm water. Let it sit for 5 minutes until the mixture has thickened, then add it to the recipe.
  • Use any kind of milk you'd like!
  • Estimated calories are for one square of baked oatmeal with no extra peanut butter or banana garnishes. 
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