Strawberry Oatmeal Breakfast Bars

Published May 21, 2026

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Summery Strawberry Oatmeal Breakfast Bars! Made with a fresh, jammy, just sweet strawberry filling that’s layered between a tender crisp, buttery oat crumble. A delectable way to start the day.

Close up photo of stacked strawberry oatmeal breakfast bars.

All There is to Love About Strawberry Oatmeal Bars

These breakfast bars are a little indulgent yet also include nutritious ingredients including whole wheat flour or oat flour, whole oats, and fresh berries making them more fitting for a fun weekend breakfast. Especially when served with options like a side of greek yogurt and veggie dotted egg muffins.

They also make for a welcoming a holiday brunch, or even a decadent dessert when topped with a fair scoop of vanilla bean ice cream!

We love these both ways, using either whole wheat pastry flour or finely ground oat flour. And we also enjoy them as blueberry oatmeal crumb bars too, by simplying replace the strawberries with equal parts fresh blueberries.

If you are lucky enough to have a few extra left, you may even find you like them cold right from the fridge the next day for a refreshing chilled breakfast.

Treat yourself to these delightful breakfast treats soon. It’s a delicious way to celebrate in the summer season!

Overhead photo of strawberry filled oatmeal bars.

Ingredients used to make berry breakfast oatmeal bars.

Strawberry Oatmeal Bars Recipe Ingredients

Rolled oats: Use “old fashioned rolled oats” not steel cut or quick oats.

Whole grain flour: This recipe works well with whole wheat pastry flour or oat flour.

Brown sugar: Coconut sugar could be used in place of brown sugar.

Baking powder: This adds a little lift to the crumble for a more tender bite.

Salt: This will enhance all the flavors of the bars.

Butter: Substitutes included vegan butter or coconut oil.

Vanilla extract: This adds some sweet background flavor to the bars.

Strawberries: Use fresh strawberries for best results. In a pinch frozen and thawed should work as well, just thaw and drain excess juices.

Cornstarch: A key ingredient that helps thicken the fruit filling. Tapioca starch will work great too, use 2 Tbsp.

Honey: This is added to sweeten the strawberries and enhance their flavor.

Oats, whole wheat flour, brown sugar and baking powder in a glass mixing bowl shown before mixing.

Butter added to oat flour mixture in mixing bowl.

How to Make Strawberry Oat Breakfast Bars

Heat oven and prepare pan: Preheat oven to 375 degrees. Grease a 9 by 9-inch baking dish, optionally you can also line with parchment paper to more easily remove bars.

Mix crumble: In a mixing bowl using your fingers toss together oats, wheat pastry flour or oat flour, brown sugar, baking powder, and salt. Break up any small clumps of brown sugar as you toss.

Stir vanilla into dish with melted butter then pour into oat mixture, toss with a spatula to evenly coat mixture.

Oatmeal crumb mixture shown after being hydrated and mixed with melted butter using a spatula. Oat crumb mixture pressed into a parchment paper lined square baking dish.

Press crumble into pan: Press nearly 2/3 of the oat mixture into pan it should barely be enough to cover (reserving nearly 1/3 or 180g specifically for the top).

Add strawberry layer: In a separate mixing bowl toss together strawberries with cornstarch and honey. Spread strawberry mixture over bottom oat layer in pan.

Diced strawberries and cornstarch in a large liquid measuring cup with honey being drizzled in.

Diced strawberry mixture shown added over oatmeal layer.

Sprinkle remaining crumble over: Top strawberry layer with the remaining oat crumble mixture dotting it over the top (you can press pieces together slightly for more chunky crumble).

Bake to set: Bake in preheated oven until golden brown and juices are bubbling, about 35 to 40 minutes.

How to serve: You can spoon it out warm but if you want more uniform bars wait 20 to 30 minutes to cut into squares.

Oatmeal crumb topping added over strawberry layer in baking dish, shown before baking. Berry filled breakfast bars shown after baking.

Other Types of Fruit to Use for Filling

In place of strawberries try these breakfast bars with:

  • Fresh blueberries
  • Fresh raspberries
  • Peeled and chopped peaches or nectarines
  • Peeled and grated apples
  • Pitted cherries, quartered

Strawberry filled oatmeal bars shown on white parchment set over a wooden serving tray. They are cut to show filling and serving size. Decorative fresh strawberries are shown to the sides.

How to Store Fruit Filled Breakfast Oat Bars

Store in the fridge in an airtight container for up to 2 days, freeze for 3 months.

Rewarm single servings in the microwave on a microwave safe dish, or reheat in a 350 degree oven on a baking sheet until warmed through. Note that the bars wont be as crisp after the first day.

Why Use Whole Wheat Pastry Flour vs. Regular Whole Wheat Flour

You may be wondering if regular whole wheat flour is an option for this recipe and while it is, it will yield a more dense and coarse crumb. Whole wheat pastry flour produces a lighter more tender crumb that is more similar to that of white flour.

Making Thicker Bars

For thicker crumb bars you can use an 8 by 8-inch baking dish for this recipe.

Making Gluten Free Oatmeal Bars

  • To make these gluten free omit whole wheat pastry flour and use gluten free oat flour only.
  • Use certified gluten free rolled oats and also gluten free baking powder.
  • And as always ensure other ingredients are produced in gluten free facilities with no cross contamination.

Breakfast bars shown close with filling and texture shown.

More Crumb Bars Recipes to Try

16 Quick & Easy 30 Minute Recipes! (plus weekly recipe updates)

Strawberry Oatmeal Breakfast Bars

Summery Strawberry Oatmeal Breakfast Bars! Made with a fresh, jammy, just sweet strawberry filling that's layered between a tender crisp, buttery oat crumble. A delectable way to start the day.
Servings: 9
Prep20 minutes
Cook35 minutes
Ready in: 55 minutes

Ingredients

Instructions

  • Preheat oven to 375 degrees. Grease a 9 by 9-inch baking dish, optionally you can also line with parchment paper to more easily remove bars.
  • In a mixing bowl using your fingers toss together oats, wheat pastry flour or oat flour, brown sugar, baking powder, and salt. Break up any small clumps of brown sugar as you toss.
  • Stir vanilla into dish with melted butter then pour into oat mixture, toss with a spatula to evenly coat mixture.
  • Press nearly 2/3 of the oat mixture into pan it should barely be enough to cover (reserving nearly 1/3 at 180g for the top).
  • In a separate mixing bowl toss together strawberries with cornstarch and honey. Spread strawberry mixture over bottom oat layer in pan.
  • Top strawberry layer with the remaining oat crumble mixture dotting it over the top (you can press pieces together slightly for more chunky crumble).
  • Bake in preheated oven until golden brown and juices are bubbling, about 35 to 40 minutes.
  • You can spoon it out warm but if you want more uniform bars wait 20 to 30 minutes to cut into squares.
  • Store in the fridge for up to 2 days, freeze for 3 months.

Notes

  • To Make Gluten Free Oatmeal Bars: Omit whole wheat pastry flour and use gluten free oat flour only. Use certified gluten free rolled oats and also gluten free baking powder. And as always ensure other ingredients are produced in gluten free facilities with no cross contamination. 
  • To make vegan: Replace honey with white sugar or maple syrup and butter with vegan butter or coconut oil.
Nutrition Facts
Strawberry Oatmeal Breakfast Bars
Amount Per Serving
Calories 262 Calories from Fat 99
% Daily Value*
Fat 11g17%
Saturated Fat 7g44%
Trans Fat 0.4g
Polyunsaturated Fat 1g
Monounsaturated Fat 3g
Cholesterol 27mg9%
Sodium 60mg3%
Potassium 219mg6%
Carbohydrates 38g13%
Fiber 4g17%
Sugar 16g18%
Protein 4g8%
Vitamin A 318IU6%
Vitamin C 30mg36%
Calcium 42mg4%
Iron 1mg6%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition values are estimates only. See full disclaimer here.