Blueberry Baked Oatmeal

by Gayle on Mar 9, 2020 (updated Mar 14, 2024) 2 comments »

Blueberry Baked Oatmeal is an easy, make-ahead dish that’s perfect for busy mornings. Tangy blueberries and hearty oats are sweetened with just the right amount of cozy spices. Serve this baked oatmeal with a drizzle of honey or maple syrup for a hearty breakfast!

Blueberry Baked Oatmeal is an easy, make-ahead dish that's perfect for busy mornings. Tangy blueberries and hearty oats are sweetened with just the right amount of cozy spices. Serve this baked oatmeal with a drizzle of honey or maple syrup for a hearty breakfast!

If you’ve been hanging around here long enough, then you might remember that I haven’t always been a fan of oatmeal.

In fact, it’s still not my favorite, unless you count this baked banana bread oatmeal, those strawberry banana oatmeal cups, or these apple pie overnight oats.

Oatmeal has to have a lot of flavor, otherwise it’s too plain and boring for me. Even the instant oatmeal, as flavorful as it seems, just isn’t my thing.

And that’s why I’ve been on a mission to create those sweet, yet hearty oatmeal dishes. Have you tried my pumpkin pie oatmeal yet? It’s so warm and cozy! And since breakfast ideas are always floating around in my mind, it was time to put another oatmeal creation to good use.

And, yes, baked oatmeal definitely hits the spot for me. I just love the texture, flavor, and all-around taste. It’s like a hug on a plate, friends! This blueberry baked oatmeal recipe is my latest (and greatest) creation to add to my breakfast rotation.

Not only is this blueberry baked oats recipe a breeze to whip up (a requirement around here!), but it’s full of good-for-you ingredients and low in sugar. It’s very easy to customize this recipe depending on your tastes, too.

Ingredients for Blueberry Baked Oatmeal

This oatmeal bake with blueberries calls for just a handful of ingredients, most of which I bet you have on hand already!

Here’s what you’ll need to make this baked blueberry oatmeal:

Old-fashioned oats
Ground cinnamon and nutmeg
Baking powder and baking soda
Salt
Milk
Eggs
Honey
Vanilla bean paste (or extract)
Blueberries

How to Make Blueberry Baked Oatmeal

Did I mention how hearty and cozy this baked oatmeal recipe is? One bite and you’ll fall in love the sweet blueberries and warm oats. I like to drizzle some honey on top and eat this warm for a filling breakfast.

Like all of my baked oatmeal recipes, this version is simple to make. You can have it ready in less than an hour, too!

Here’s how the blueberry oatmeal bake is made:

To start, mix together some old-fashioned oats, some spices, baking powder, baking soda, and salt.
Then, whisk the wet ingredients, such as milk, honey (or maple syrup), eggs, and a touch of vanilla extract.
Stir in some fresh (or frozen) blueberries, pour into a baking dish, and let the oven work its magic.

Easy-peasy and ready in no time!

Can Baked Oatmeal be Made the Night Before?

Absolutely! This baked oatmeal with blueberries is perfect for meal prepping. You can make and bake this oatmeal ahead of time and then slice and serve for a quick breakfast during the week.

You can also prepare the baked oatmeal beforehand, refrigerate (cover and keep for up to two days) and then bake when ready to serve. Be sure to let the oatmeal sit at room temperature for 10-15 minutes before baking, otherwise you will need to increase cooking time.

How to Store and Reheat Baked Oatmeal

Store the blueberry oatmeal bake in the fridge — tightly covered with foil or in an airtight container — for up to five days.

To reheat, microwave a slice on high heat in 30-second increments until heated through. Or, reheat larger portions in a 350ºF oven for roughly 10 to 15 minutes.

Can You Freeze Baked Oatmeal?

You sure can! Simply let the oatmeal come to room temperature and then store in a a freezer-safe container for up to three months. When ready to serve, let thaw in the refrigerator before baking.

Can You Substitute Quick Oats for Old-Fashioned Oats?

You can, but the texture will be different. In recipes that call for old-fashioned (or rolled) oats, it provides a more chewy, nutty texture and flavor. Quick oats provide a softer, moister texture. In all of my oatmeal recipes, I use old-fashioned oats, as I prefer the hearty texture over the finer, quick oats.

Recipe Substitutions to Try

This blueberry oatmeal bake is very straightforward, so feel free to tweak the ingredients list to your liking.

Spices: I used ground cinnamon and nutmeg, but you can play around with pumpkin pie spice, gingerbread spices, and other spice blends.
Milk: Any kind of milk will work! Dairy or non-dairy, sweetened or unsweetened, flavored or unflavored.
Sweetener: I used honey, but maple syrup or another liquid sweetener will work.
Vanilla bean paste: I love the richness it adds to baked goods, but regular vanilla extract is fine too.
Blueberries: Use fresh or frozen, or substitute another berry altogether.

How to Serve Blueberry Baked Oatmeal

This baked oatmeal with blueberries is one of my favorite breakfasts, and I’m hoping it will be yours, too. Serve the oatmeal warm or cold with one (or more!) of the following toppings:

A drizzle of honey or maple syrup
A splash of milk
A dollop of yogurt
Fresh blueberries or blueberry sauce
A handful of chopped nuts