These baked oatmeal cups are a convenient, portable take on traditional baked oatmeal—ideal for meal prep, lunchboxes, or a quick grab-and-go breakfast. They’re easy to customize with mix-ins like berries, nuts, or chocolate chips, naturally sweetened with mashed banana and a touch of brown sugar, and freeze well for make-ahead breakfasts the whole family will enjoy.
⭐️⭐️⭐️⭐️⭐️ Reader Favorite! Jes writes, “We love these for quick grab-and-go meals. I’ve made many variations—diced apples with apple pie spice, pumpkin in place of banana (with mini chocolate chips on top), pineapple, dried cranberries… They never last long in our house!”
Table of Contents
- Grab These Ingredients
- How to Make Baked Oatmeal Cups
- Flavor Variations
- Storage & Freezing Instructions
- More Healthy Breakfast Recipes You’ll Love
- Baked Oatmeal Cups (Freezer-Friendly) Recipe
I first shared this recipe in 2018 during the early years of motherhood when I needed reliable, make-ahead breakfasts. Over the years it’s become one of my go-to recipes because it’s wholesome, flexible, and family-friendly.
These oatmeal cups are packed with simple, nutritious ingredients and can be adapted to whatever you have on hand. They’re freezer-friendly, naturally sweet, and require only two bowls to prepare—perfect for busy mornings.
Grab These Ingredients
These are the basics you’ll need for portable baked oatmeal cups, plus a few easy swaps to customize them:
- Old-fashioned oats: Rolled oats give the best texture. Quick oats can get mushy; steel-cut need more liquid and time.
- Baking powder: A small amount helps the cups rise slightly so they aren’t too dense.
- Light brown sugar: Adds a touch of sweetness; reduce or swap for maple syrup or honey if you prefer.
- Mashed banana: Overripe bananas provide natural sweetness and moisture. Substitute applesauce, pumpkin purée, or another fruit purée if desired.
- Milk: Any milk—dairy or plant-based—works (almond, oat, 2%, etc.).
- Eggs: Eggs bind the mixture and add protein. For an egg-free option, try a flax egg substitute.
- Melted butter: Two tablespoons add richness; use melted coconut, avocado, or vegetable oil if needed.
- Cinnamon + vanilla extract: Simple flavor enhancers that make a difference.
- Mix-ins: Make them your own—blueberries, chocolate chips, chopped apples, raisins, nuts, or toasted coconut are all great choices.
See the recipe card below for exact quantities and full directions.
How to Make Baked Oatmeal Cups
This recipe turns a bowl of oatmeal into a portable baked treat that’s easy to personalize.
- Prep the muffin tin. Preheat the oven to 350°F and grease a 12-cup muffin pan well.
- Mix dry ingredients. In a large bowl, combine rolled oats, baking powder, cinnamon, and brown sugar.
- Whisk wet ingredients. In another bowl, whisk mashed banana, milk, eggs, melted butter, and vanilla until smooth.
- Combine. Add the wet mixture to the dry and stir just until combined. The batter will be scoopable with an oatmeal-like consistency, not thick like cake batter.
- Add mix-ins and fill the pan. Fold in desired mix-ins, divide the batter among the muffin cups, and fill almost to the top.
- Bake 25–30 minutes. Bake until the tops are golden and the centers are set.
- Cool and serve. Let the cups cool slightly in the pan, then finish cooling on a wire rack. Top with fresh fruit or a drizzle of maple syrup if you like.
Flavor Variations
One basic batter lets you create many flavor combinations. Try these favorites:
- Banana Chocolate Chip: Stir in mini chocolate chips.
- Blueberry Almond: Add fresh or frozen blueberries and sliced almonds.
- Apple Cinnamon: Fold in finely chopped apples and extra cinnamon; add chopped walnuts if desired.
- Peanut Butter Banana: Swirl in peanut butter and top with banana slices after baking.
- Pumpkin Spice: Use pumpkin purée instead of banana and add pumpkin pie spice.
Storage & Freezing Instructions
Once completely cooled, store the oatmeal cups in an airtight container in the refrigerator for up to 5 days.
They also freeze perfectly. Wrap each cooled cup tightly in plastic wrap, place them in a sealable bag or airtight container, and freeze up to 3 months. To reheat, unwrap and microwave for 30–60 seconds until warm.
More Healthy Breakfast Recipes You’ll Love
- Healthy Overnight Oats
- Oatmeal Pancakes
- Healthy Breakfast Cookies
- Freezer-Friendly Egg White Muffins
- Muffin Tin Granola Cups
Enjoy these baked oatmeal cups as a quick, nutritious breakfast or snack. They’re simple to make, easy to customize, and a great option for busy mornings.
Baked Oatmeal Cups (Freezer-Friendly)
Ingredients
- 3 cups old fashioned oats
- 1 teaspoon baking powder
- 1 teaspoon ground cinnamon
- 1/4 cup packed light brown sugar
- 1/2 cup mashed banana
- 1 1/2 cups milk
- 2 large eggs
- 2 Tablespoons unsalted butter, melted
- 1 Tablespoon vanilla extract
- Fruit, for serving (optional)
Instructions
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Preheat the oven to 350°F and generously grease a 12-cup muffin tin.
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In a large bowl, stir together the oats, baking powder, cinnamon and brown sugar.
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In a separate bowl, whisk the mashed banana, milk, eggs, melted butter and vanilla. Add the wet ingredients to the dry and mix just until combined, then divide the mixture among the muffin cups, filling them full.
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Bake 25–30 minutes, or until golden on top and set in the center. Cool in the pan for 5 minutes, then transfer to a rack to cool completely.
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Top with fresh or dried fruit, chopped nuts, toasted coconut, or a drizzle of maple syrup if desired.
Kelly’s Notes
- You can replace mashed banana with applesauce, pumpkin purée, or another mashed fruit.
- Any milk—whole, reduced-fat, or plant-based—works well in this recipe.
- To freeze: wrap each cooled oatmeal cup tightly in plastic wrap, place in a sealable bag or airtight container, and freeze up to 3 months. Reheat in the microwave 30–60 seconds until warmed through.
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