Baked Oatmeal with Mixed Berries
Baked Oatmeal with Mixed Berries

These gluten free baked oats with blueberries and raspberries are an easy and healthy brunch casserole. Reheat leftovers for a quick breakfast all week long.

Baked oats are a healthy twist on brunch casseroles that are typically bread-centric.

Baked oatmeal is an inherently sweet and gluten-free breakfast. This recipe uses a blend of fresh berries, making it a vibrant and flavorful breakfast casserole that will appeal to adults and kids alike.

There are also many flavor and ingredient changes you can make. If making this in the fall, substitute diced apple and cinnamon, use only blueberries, and omit the raspberries. If you’re vegan, use flaxseed eggs instead. Baked oatmeal is endlessly versatile and who doesn’t love a recipe you can make yourself?

How to make baked oatmeal

This no-fuss recipe can be made without strong culinary skills, and it’s easy for kids to help out. Here are some tips to keep in mind when preparing a baked oatmeal casserole.

Baked oatmeal has a fairly firm texture, but should never be dry. Conversely, it should be similar to a thick bread pudding. Think creamy and custardy, but firm enough to lift out of the pan with your hands if you wish. Just like bread pudding, it should be removed from the oven when it’s barely set, as it will continue to set as it cools.

In order not to outweigh the liquid content of this dish, fresh berries are the ideal choice. If you must use frozen berries, make sure you fully thaw and drain your fruit beforehand. Gently fold in the frozen berries with the other ingredients so they don’t break down too much before baking.

To make these berry baked oats vegan, you can swap out the milk and yogurt for plant-based versions and use an egg replacer instead of regular eggs.

To keep portions correct, consider using a vegan egg replacer that is equivalent in volume to a whole egg, such as a B. Follow Your Heart or Just Eggs, and no starch substitutes that only replace the thickening power of the eggs. The eggs here add volume, structure and protein.

swaps and subs

These baked oats are made with mixed berries, but you can take the base of this recipe and use any flavor combinations you like.

Swap the blueberries and raspberries for:

  • blackberries and strawberries
  • apples and cinnamon
  • pears and ginger
  • Mashed Bananas
  • Pumpkin puree and pumpkin pie spice
  • peanut butter
  • coconut flakes
  • pineapple
  • Grated zucchini
  • carrots

how to serve

Serve this warm fresh from the oven or serve leftovers chilled to eat as a hand dish; This makes it great for a grab-and-go breakfast, making preparing the week’s breakfast meals a breeze.

It feels like custard thanks to the milk and eggs and is best eaten with a spoon when warm, or similar to bread pudding, it can be cut into squares. Be sure to use a large spatula or serving spoon to remove it from the pan.

This casserole is perfect on its own with no accessories needed. Toppings make it better, though, and you can even make a breakfast bar using the casserole as a base.

Perfect toppings for baked oatmeal are:

  • yogurt
  • sour cream
  • jam
  • fruit sauce
  • maple syrup
  • peanut butter
  • Chopped nuts or seeds.

how it lasts

Leftovers from this casserole keep perfectly! Keep them in a tightly sealed container, and not in the original dish in which you baked, so that the casserole does not lose moisture in the refrigerator. Alternatively, wrap each serving individually in plastic wrap and place in Tupperware and refrigerate to enjoy a chilled oatmeal square later. Once refrigerated, it will keep for three to five days before drying out.

How to reheat baked oatmeal

It can be baked ahead of time, stored in the casserole dish, and then returned to the oven to reheat the next day. To do this, reduce the baking time by ten minutes when pre-baking. If you’re feeding a crowd, this recipe can also be doubled and baked in an 11×17-inch pan. If doubling the recipe, add 10 to 15 minutes of baking time, depending on the depth of your casserole dish.

All about oat recipes

  • Oatmeal chia mug to go
  • Strawberry Oatmeal Muffins
  • Slow cooker flavored oatmeal
  • Overnight oats with strawberry buttermilk
  • Oatmeal muffins with raisins, dates and walnuts

Baked oatmeal with mixed berries

preparation time
10 mins

cooking time
45 minutes

total time
55 minutes

up to 6 servings

1 (9×9 inch) casserole


  • 2 cups oatmeal

  • 1/2 Cup milk

  • 3 eggsbeaten

  • 2 tablespoon melted butter or olive oil

  • 1/3 Cup honey

  • 1/2 Cup Full fat natural yoghurt

  • 1/2 teaspoon vanilla extract

  • 3/4 teaspoon Salt

  • 1 Cup blueberriesdivided

  • 1 Cup raspberriesdivided


  1. Preheat the oven and prepare the casserole dish:

    Preheat your oven to 375°F. Grease with butter or line a 9×9 baking dish with parchment.

  2. Combine the ingredients in a large mixing bowl:

    In a large mixing bowl, combine oats, milk, eggs, melted butter, honey, yogurt, vanilla, and salt. Stir with a fork or whisk to mix thoroughly.

  3. Fold the berries into the mixture and place in the casserole dish:

    Fold 3/4 cup each of blueberries and raspberries into the mixture. Pour the mixture into the prepared casserole dish. Scatter all the remaining berries on top.

  4. Bake casserole:

    Bake the oatmeal casserole for 45 minutes or until the casserole is glossy on top and firm to the touch.

nutritional information (per serving)
277 calories
9g Fat
42g carbohydrates
9g protein
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Hello everybody, Even if you're limited on time and money, I believe you can prepare wonderful food with everyday products. All you have to do is cook cleverly and creatively!