Banana Oatmeal Bars (Healthy Breakfast Baking)

One-bowl banana oat bars, soft, wholesome, and ready in about 40 minutes. Meal-prep friendly with dairy-free and no-refined-sugar options.

Ripe bananas meet toasted oats and a touch of maple for bars that taste like banana bread, only easier to bake, slice, and grab all week.

pan of banana oatmeal bars cut into squares, oat flecks and a few walnuts on top, parchment overhang visible.

Why You’ll Love It

  • Breakfast baking, healthy: Whole oats, ripe banana, and maple keep these bars naturally sweet and fiber-rich.
  • Banana bread… but bars: All the cozy banana bread flavor—baked flat for quick cooling and clean slices.
  • Oatmeal energy bars: Satisfying without heaviness; add nuts or seeds for extra staying power.
  • Simple pantry list: One bowl, no mixer, and flexible swaps (GF/DF).
  • Perfect for busy mornings: Cut, wrap, and you’ve got breakfast banana bars for the week.

Ingredients (notes only, grouped)

Base (the bar):

  • Ripe bananas (3 medium, ~1¼ cups mashed): Brown-speckled is ideal for sweetness and moisture.
  • Rolled oats (2 cups): Old-fashioned oats give chew; pulse ½ cup into quick oats for a softer bite if you like.
  • Oat flour (½ cup): Lightens texture; make your own by blending oats. Use almond flour for grain-free tweak.
  • Eggs (2 large) or flax eggs (2 Tbsp ground flax + 5 Tbsp water) for vegan.
  • Maple syrup (¼–⅓ cup): Natural sweetness; adjust to your bananas.
  • Nut butter (¼ cup): Almond or peanut adds structure and healthy fats. Sunflower butter for nut-free.
  • Oil or melted butter (2 Tbsp): Keeps bars tender; coconut or light olive oil both work.
  • Baking powder (1 tsp), baking soda (½ tsp), cinnamon (1 tsp), fine salt (½ tsp), vanilla (1 tsp).

Mix-ins (choose 1–2):

  • Chocolate chips (½ cup), chopped walnuts/almonds (½ cup), hemp hearts (2 Tbsp), chia (1 Tbsp), or dried fruit (¼ cup).

Topping (optional):

  • Sprinkle of oats + a few chips or nuts for a bakery look.

Step-by-Step (Oven, 8×8 pan)

  1. Prep (5 min): Heat oven to 350°F (175°C). Line an 8×8-inch pan with parchment, overhang for easy lift.
  2. Mash & whisk (3 min): In a large bowl mash bananas smooth. Whisk in eggs (or flax eggs), maple, nut butter, oil, and vanilla.
  3. Dry ingredients (2 min): Add oats, oat flour, baking powder, baking soda, cinnamon, and salt. Stir until no dry spots remain. Batter will be thick and scoopable.
  4. Fold-ins (1 min): Stir in chocolate chips or nuts/seeds.
  5. Bake (22–28 min): Spread evenly in pan. Bake until the center springs back and a toothpick comes out mostly clean with a few moist crumbs: internal temp ~200–205°F (93–96°C) for perfect doneness.
  6. Cool (20 min): Cool in pan 10 minutes, then lift out to a rack another 10 minutes before slicing 12 bars.
  7. Finish: For clean edges, wipe the knife between cuts. Bars firm up more as they cool.

Pro Tips

  • Banana power: Sweetness comes from fruit—if your bananas are pale yellow, use the higher maple amount.
  • Don’t over-bake: Pull as soon as the center sets; over-baking dries oats. Temp check helps.
  • Texture control: For cake-ier bars, use an extra 2 Tbsp oat flour; for chewier bars, swap ¼ cup oats for chopped nuts or seeds.
  • Batch double: Bake in a 9×13 pan; reduce bake time to 20–24 minutes, watching edges.
  • Freeze like a pro: Freeze bars flat, then store in a zip bag—thaw in lunchboxes or toast from frozen.

Variations (mapped to your interests)

  • Banana Bread Bars Healthy: Add ½ cup chopped walnuts + ½ tsp nutmeg; keep maple at ¼ cup.
  • Banana Bread Oat Bars: Skip oat flour; use all rolled oats (2½ cups total). Extra rustic, oatmeal-bar texture.
  • Banana Muffin Bars: Add 1 tsp baking powder more (total 2 tsp) and 2 Tbsp milk for softer, muffin-like crumb.
  • Oatmeal Breakfast Squares: Bake in a 9×9 and cut into large squares; fold in ¼ cup raisins + ¼ cup chopped almonds.
  • Banana Oatmeal Bar (classic): No chips, just cinnamon + vanilla; top with oat sprinkle.
  • Healthy Banana Snack Recipes (DF): Use flax eggs + coconut oil + dairy-free chips (or none).
  • Oatmeal Energy Bars: Add 2 Tbsp ground flax, 2 Tbsp hemp hearts, and 1 Tbsp chia; press 1 Tbsp seeds on top before baking.

How to Serve

  • Warm with a swipe of peanut butter or Greek yogurt + berries.
  • Crumble into a bowl and splash with milk for a fast oat-bake breakfast.
  • Pack for school or shift snacks; they travel well and don’t crumble once cooled.

Make Ahead & Storage

  • Room temp: Airtight up to 3 days.
  • Fridge: 5–6 days; rewarm 10–15 seconds to soften.
  • Freeze: Up to 3 months; wrap individually.
  • Reheat: Toaster oven 300°F / 150°C for 5 minutes restores edges.

FAQs

Can I make these gluten-free?
Yes—use certified GF oats/oat flour.

How sweet are they?
Mildly sweet. For dessert-bars, bump maple to ⅓ cup and include ½ cup chips.

Can I replace eggs with applesauce?
Use flax eggs instead for structure; applesauce makes them gummy.

Why are my bars crumbly?
They were under-mixed or under-baked. Mix until evenly hydrated and bake to 200–205°F center.

Simple Nutrition (estimate per bar, 12 bars; with walnuts but no chocolate)

Calories: 185 | Protein: 5g | Carbs: 28g | Fat: 6g | Fiber: 4g | Sugar: 11g | Sodium: 150mg

Sarah

Banana Oatmeal Bars (One-Bowl, Healthy)

Soft, wholesome banana oat bars sweetened naturally with maple and ripe bananas. One bowl, about 40 minutes, and perfect for breakfast meal-prep or snacks.
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 12 bars
Course: Breakfast, Snack
Cuisine: American
Calories: 185

Ingredients
  

  • 3 ripe bananas, mashed (about 1¼ cups)
  • 2 large eggs (or 2 flax eggs: 2 tbsp ground flax + 5 tbsp water)
  • 0.25–0.33 cup maple syrup
  • 0.25 cup creamy almond or peanut butter (or sunflower butter)
  • 2 tbsp melted coconut oil or butter
  • 2 cups rolled oats
  • 0.5 cup oat flour (blend oats)
  • 1 tsp baking powder
  • 0.5 tsp baking soda
  • 1 tsp cinnamon
  • 0.5 tsp fine sea salt
  • 1 tsp vanilla extract
  • 0.5 cup chocolate chips (optional)
  • 0.5 cup chopped nuts or seeds (optional)

Equipment

  • 8×8-inch baking pan
  • Parchment paper
  • mixing bowl
  • whisk or spatula
  • measuring cups and spoons

Method
 

  1. Heat oven to 350°F (175°C). Line an 8×8 pan with parchment.
  2. Whisk mashed bananas, eggs (or flax eggs), maple syrup, nut butter, oil, and vanilla until smooth.
  3. Stir in oats, oat flour, baking powder, baking soda, cinnamon, and salt until combined.
  4. Fold in any mix-ins. Spread batter into the pan and smooth the top.
  5. Bake 22–28 minutes, until set and a toothpick has a few moist crumbs (200–205°F center).
  6. Cool 10 minutes in the pan, lift out, cool another 10 minutes, then slice into 12 bars.

Nutrition

Calories: 185kcalCarbohydrates: 28gProtein: 5gFat: 6gSaturated Fat: 2gPolyunsaturated Fat: 1.5gMonounsaturated Fat: 2.5gCholesterol: 30mgSodium: 150mgPotassium: 220mgFiber: 4gVitamin A: 60IUVitamin C: 3mgCalcium: 80mgIron: 1.5mg

Notes

GF: Use certified gluten-free oats/oat flour.
DF/Vegan: Use flax eggs, coconut oil, and dairy-free chips.
Air Fryer: 8×8 metal pan (or two mini pans) at 320°F (160°C) for 14–18 minutes; check early.
9×13 batch: Double recipe; bake 20–24 minutes.
Add protein: Stir in 1/4 cup vanilla protein powder + 2 tbsp milk if batter is too thick.

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