
Mixed Berry Baked Oatmeal is the ultimate breakfast comfort food, bringing together hearty oats, juicy berries, and warm spices in one golden, satisfying bake. This simple yet flavorful dish is naturally sweetened with maple syrup and balanced with just the right amount of creaminess. Perfect for mornings when you want something both nourishing and delicious, it’s a recipe that feels cozy, wholesome, and indulgent all at once.
Every bite delivers a delightful mix of soft baked oats and bursts of berry sweetness. Best of all, this dish can be made ahead of time, making it ideal for meal prep or a crowd-pleasing brunch centerpiece. Serve it warm with yogurt, cream, or an extra drizzle of maple syrup for a comforting finish.
Baked oatmeal has long roots in Pennsylvania Dutch kitchens, where hearty breakfasts were crafted to fuel busy days. This modern twist highlights fresh mixed berries, adding a vibrant and colorful touch that makes every slice irresistible.

Recipe Yield: 6 servings
INGREDIENTS
2 cups old-fashioned rolled oats
1 1/2 cups mixed berries (blueberries, raspberries, strawberries, blackberries)
2 cups whole milk
1/2 cup pure maple syrup
1 tsp ground cinnamon
1/4 tsp ground nutmeg
1 tsp baking powder
1/4 tsp salt
2 large eggs
2 tbsp melted unsalted butter
2 tsp pure vanilla extract
1/4 cup chopped walnuts or pecans (optional)
INSTRUCTIONS
1. Preheat and prepare:
Preheat oven to 350°F (175°C). Grease an 8×8-inch baking dish with butter or nonstick spray.
2. Mix dry ingredients:
In a large bowl, whisk together oats, baking powder, cinnamon, nutmeg, and salt until evenly combined.
3. Mix wet ingredients:
In a separate bowl, whisk together milk, maple syrup, eggs, melted butter, and vanilla until smooth and well blended.
4. Combine and fold:
Pour wet mixture into the dry ingredients and stir gently until combined. Fold in the mixed berries, being careful not to crush them too much.
5. Transfer and bake:
Pour mixture into the prepared baking dish. Spread evenly and sprinkle with chopped nuts if using. Bake for 40–45 minutes, until golden brown and set in the center.
6. Cool and serve:
Allow baked oatmeal to cool for 10 minutes before slicing. Serve warm as is, or drizzle with extra maple syrup or a dollop of yogurt.
Helpful Tips to Perfect This Recipe
- Use Frozen Berries: You can use frozen mixed berries, but do not thaw them before adding, or the oatmeal may turn soggy.
- Make It Creamy: Stir in 1/4 cup Greek yogurt or a splash of cream with the wet ingredients for an extra creamy baked oatmeal.
- Prep Ahead: Assemble the dish the night before, cover, and refrigerate. In the morning, bake as directed for a ready-to-go breakfast.
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