Name: Blueberry Walnut Baked Oatmeal
Prep time: 5 min
Cook time: 30 min
Total time: 35 min
Ingredients: 2 cups gluten free rolled oats; 1/4 cup gluten free oat flour or regular flour; 1/2 cup chopped walnuts (or opt for sunflower seeds to make nut free); 2 tsp baking powder; 2 tsp cinnamon; 1 1/2 tbsp chia seeds; 1/3 cup coconut sugar or white sugar; 1/2 cup or more frozen blueberries; 1 1/2 cups unsweetened soy milk (opt for other unsweetened milk based on your preference); 1/4 cup tahini or sunflower seed butter; 1/2 tsp salt

Jump to Recipe

This blueberry walnut baked oatmeal is the perfect meal prep for those that don’t like regular oatmeal. Bakes in one dish, tastes like a muffin and still gives you all the nutrition benefits of oats.

Spoonful of baked oats on a plate with pepitas and yogurt on top.

Table of Contents

Why you’ll love this baked oatmeal

It’s a super easy and hands off way to make and enjoy your oats in the morning. Bake once and you are set for the week.
This is a one pan meal, just add all your ingredients to a baking dish and whisk to combine then bake.
Perfect for those that want to get the benefits of oats, but don’t like the texture of a regular bowl of oatmeal. This has a very muffin like consistency, which is nice and hearty.

Plating a piece of the baked oatmeal on a white plate next to the baking dish with oats.

Key Ingredients

Rolled Oats: to make gluten free make sure to use gluten free rolled oats
Flour: oat flour or regular flour works perfect for these oats
Walnuts: I love their buttery taste, but you can absolutely swap for a nut or seed of your choice here
Sugar: you can use what you have on hand, but either coconut sugar or regular sugar works
Blueberries: for convenience I used frozen blueberries, but fresh works too
Unsweetened Plant Milk: to help add a little protein I opted for soy milk, but feel free to choose your favorite
Nut or Seed Butter: I used tahini; if choosing a different nut or seed butter opt for natural options where possible for a nice runny consistency

How to make this baked oatmeal

All you need to do is start by setting your oven to 350F and grabbing an 8-in x 8-in baking dish.

Baking dish with all of the dry ingredients before mixing.

All the dry ingredients mixed in a baking dish with the flour dusted frozen blueberries and walnuts.

To the pan, add in your oats, flour, walnuts, sugar, baking powder, cinnamon, chia seeds, and salt and stir well to combine.

All the wet ingredients mixed with the dry oat mixture.

Blueberry baked oats right out of the oven.

Add in your wet ingredients then give a good mix to create a thick batter. Don’t forget to fold in your frozen berries, then gently press the batter down to compact it better in the baking dish.

Place your oats in the oven to bake for 30 minutes and then allow to cool once done baking before serving.

Taking a spoonful of the baked oatmeal from the baking dish with a spoon.

Tips for making this recipe

Do not replace the rolled oats in this recipe. The rolled oats make a big difference in terms of the texture of the final product.
To prevent your frozen berries from bleeding into your batter and making it all turn blue, just toss them in a spoonful of flour before mixing into your batter. The flour will temporarily keep the juice of the blueberries locked in.

Baked Oatmeal Q&A

What is the texture of baked oats?

Baked oatmeal has a firm texture and I find has a closer consistency of a muffin. It has more chew thanks to the large flakes of rolled oats in it. This is perfect for anyone that might prefer a more firm texture to chew through.

Does baked oatmeal need to be refrigerated?

Yes! To help keep your oatmeal fresh for a few days, make sure to store your baked oats in an airtight container in the fridge. Your oats will stay good in the fridge for up to 4 days. If you need to store past 4 days, I recommend freezing the rest for later use.

A piece of the baked oatmeal topped with pepitas and plant based yogurt.

What do you pair your baked oatmeal with?

You can keep it as simple as serving it as is or with a drizzle of maple syrup. I personally love to add a little more fruit on the side and a drizzle of plant based yogurt or extra nut butter to make it more filling.

Can these oats be made nut free?

They can! Just opt for some seeds like pepitas or sunflower seeds in place of the walnuts and make sure to use a nut free plant based milk like soy milk or oat milk.

More oatmeal recipes