Baked Blueberry Oatmeal (Make-Ahead, 40-Minute)
Breakfast Quick & Easy

Baked Blueberry Oatmeal (Make-Ahead, 40-Minute)

Baked Blueberry Oatmeal (Make-Ahead, 40-Minute)

Warm pockets of tender, custard-like oats studded with bursts of juicy berries and a hint of maple and cinnamon make this dish perfect for mornings. A golden, slightly crisp top gives contrast to the soft interior while toasted nuts add crunch and richness.

Swap-ins are straightforward: use any milk (dairy or plant) and swap blueberries for mixed berries, chopped apples, or pears. For added protein stir in a scoop of plain yogurt or a handful of chopped nuts; for vegan bake, substitute flax “eggs” and a plant milk, and use maple syrup as the sweetener.

Serve warm with a drizzle of extra maple syrup or a spoonful of yogurt for brunch, weekday breakfasts, or as a portable make-ahead option. The casserole refrigerates well for up to 4 days and reheats in the oven or microwave for quick, satisfying mornings.

40min total
6 servings
320 kcal/serv.

How to Make It

  1. 1

    Preheat the oven to 375°F (190°C). Lightly butter or oil an 8x8-inch (20x20 cm) baking dish.

  2. 2

    Whisk together rolled oats, baking powder, ground cinnamon, and salt in a large bowl.

  3. 3

    In a separate bowl, whisk maple syrup, milk, egg, vanilla extract, and melted butter until combined.

  4. 4

    Pour the wet mixture over the oat mixture and stir to combine, making sure oats are evenly soaked.

  5. 5

    Gently fold in half of the blueberries, then transfer the mixture into the prepared baking dish and smooth the top.

  6. 6

    Scatter the remaining blueberries across the top, sprinkle with chopped pecans and brown sugar.

  7. 7

    Bake for 25–30 minutes, or until the top is golden and the center is set but still slightly custardy.

  8. 8

    Let cool for 5 minutes before slicing. Serve warm with extra milk, yogurt, or maple syrup as desired.

  9. 9

    Store leftovers covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave or place in a 350°F (175°C) oven until warmed through.

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