One Bowl Baked Oatmeal with Mixed Berries and Nuts Recipe
This 1 Bowl Baked Oatmeal is a simple, wholesome breakfast perfect for busy mornings. Made with rolled oats, fresh or frozen berries, and a touch of maple syrup, it combines natural sweetness with hearty texture. With minimal prep and a single baking step, this comforting dish can be enjoyed warm or cold, topped with nuts or yogurt for extra flavor and crunch.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Total Time: 45 minutes
- Yield: 9 servings
- Category: Breakfast
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Ingredients
Wet Ingredients
- 1 and 3/4 cups (420ml) milk (dairy or nondairy)
- 2 large eggs
- 1/2 cup (120ml) pure maple syrup
- 1/4 cup (4 Tbsp; 56g) unsalted butter, melted and slightly cooled
- 1/4 cup (60g) unsweetened applesauce or mashed banana
- 1 teaspoon pure vanilla extract
Dry Ingredients
- 3 cups (255g) old-fashioned whole rolled oats
- 1 teaspoon baking powder
- 1 teaspoon ground cinnamon
- 1/4 teaspoon salt
Fruit and Toppings
- 1 and 1/2 cups (225g) fresh or frozen mixed berries (do not thaw)
- Optional: 1/2 cup chopped walnuts or pecans
Instructions
- Prepare Oven and Pan: Adjust the oven rack to the lower third position and preheat the oven to 350°F (177°C). Spray a 9×9 inch square pan or an 11×7 inch rectangular pan with nonstick spray. Use any pan around 3 quarts capacity; avoid smaller pans like 8×8 inches.
- Mix Ingredients: In one large bowl, whisk together the milk, eggs, maple syrup, melted butter, applesauce or mashed banana, and vanilla extract thoroughly. Add the oats, baking powder, cinnamon, and salt, stirring until well combined. Finally, fold in the fresh or frozen mixed berries. If desired, stir in or sprinkle chopped nuts on top.
- Bake the Oatmeal: Pour the mixture into the prepared baking pan and spread evenly. Bake in the preheated oven for 35 minutes or until the center is almost set for a soft, creamy texture. Bake longer for a firmer consistency.
- Cool and Serve: Allow the baked oatmeal to cool for about 5 minutes before serving. Serve warm by slicing or spooning portions, optionally topped with yogurt. Store leftovers tightly covered in the refrigerator for up to 1 week.
Notes
- The 9×9 or 11×7 pan sizes work best to ensure proper baking; a 9×13 inch pan will yield a thinner oatmeal layer and may require less baking time.
- Use either dairy or nondairy milk depending on preference or dietary needs.
- Applesauce or mashed banana adds natural sweetness and moisture but can be substituted with additional butter or a similar fruit puree if desired.
- Baking until the center is almost set results in a softer, creamier baked oatmeal; baking fully through will create a firmer dish suitable for slicing.
- Top with nuts or yogurt for added texture and flavor.
- Leftovers keep well refrigerated for up to 1 week and can be reheated gently before serving.