WIC Oatmeal Banana Muffin Squares
Soft banana oat breakfast squares that use common pantry staples, bake in one pan, and hold up for breakfasts, snacks, and lunchboxes.
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If this is your kind of supper, breakfast, or bake, keepMilk-and-Egg Breakfast Rice Bake, Peanut Butter Oat Breakfast Bars, and Whole Wheat Banana Sheet Muffins nearby for the next pan.
If you want a cleaner fix or a little backup, these guides helpHow to Substitute Whole Wheat for All-Purpose and Make-Ahead Mashed Potatoes Guide.
If you want the household logic around this pan, keepAt 7:10, Breakfast Starts Too Fast — Here Is How We Hold It and By Wednesday, the Supper Plan Breaks — Here Is How We Catch It nearby too.
These squares are built for the kind of week where breakfast needs to already be in the kitchen before the day starts pushing. The oats help them stay satisfying, the bananas keep the crumb tender, and the pan cut means you can portion them fast without standing over a muffin tin.
They are not meant to taste like a bakery cupcake. They are meant to taste warm, steady, and worth eating again tomorrow.
Recipe Rescue
Need the fix fast?
Get the safe cooling, storage, reheating, and carryover logic for leftovers built around bananas, oats, and milk.
Recipe details
Timing & yield
- Prep
- 15 minutes
- Cook / bake
- 28 minutes
- Total
- 43 minutes
- Yield
- 12 squares
Ingredients
Dry ingredients
- 2 cups old-fashioned oats
- 2 cups all-purpose flour
- 3/4 cup brown sugar
- 2 teaspoons baking powder
- 1 teaspoon baking soda
- 1 1/2 teaspoons cinnamon
- 1 teaspoon kosher salt
Wet ingredients
- 3 very ripe bananas, mashed
- 2 large eggs
- 1 1/2 cups milk
- 1/2 cup vegetable oil
- 2 teaspoons vanilla extract
- 1/2 cup raisins
Method
- Step 1. Heat the oven to 350 degrees Fahrenheit and grease a 9x13 baking dish so the squares release cleanly once cooled.
- Step 2. In a large bowl, whisk together the oats, flour, brown sugar, baking powder, baking soda, cinnamon, and salt until the leavening is evenly distributed.
- Step 3. In a second bowl, whisk the bananas, eggs, milk, oil, and vanilla until the bananas are mostly smooth and the mixture looks fully blended.
- Step 4. Pour the wet mixture into the dry ingredients, fold just until no dry flour pockets remain, then stir in the raisins.
- Step 5. Spread the batter evenly in the pan and smooth the top into the corners so the center and edges bake at the same pace.
- Step 6. Bake for 26 to 30 minutes, until the center springs back lightly and a tester in the middle comes out with moist crumbs instead of wet batter.
- Step 7. Cool in the pan for 15 minutes before cutting so the squares hold together instead of crumbling apart hot.
Equipment
- mixing bowls
- whisk
- 9x13 baking dish
Storage & safety
Store covered at room temperature for 1 day or refrigerate for up to 4 days. For longer holding, freeze the cut squares and thaw as needed.
Troubleshooting
- The squares baked up heavy
- The batter was likely overmixed. Warm a square slightly before serving to soften it, and mix the next batch only until the flour disappears.
- The center stayed damp
- Return the pan to the oven for a few more minutes and tent loosely with foil if the edges are already well colored.
Recipe rescue notes
- The bananas were not sweet enough and the pan tastes flat
-
Likely cause: The fruit was not fully ripe, so the batter lost both sweetness and aroma.
Fix: Serve the squares warm with a thin swipe of peanut butter or a spoonful of yogurt to bring back richness and flavor.
Next time: Use heavily speckled bananas so the batter gets full banana sweetness without needing more sugar.
Substitutions
- Raisins
- Use diced apple or chopped dates. — If you use fresh apple, keep the pieces small so they soften before the batter overbakes.
Carryover / Next Meal Ideas
Breakfast parfait cups
Crumble a square into a bowl or jar with yogurt and fruit for a fast second-day breakfast that still feels like something put together on purpose.
- If the squares have dried slightly in the refrigerator, warm them for a few seconds before crumbling.
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