These Banana Oatmeal Bars with Greek Yogurt make healthy snacking easy with a soft, moist texture, naturally sweet banana flavor, and a meal-prep-friendly recipe you’ll want to keep in the fridge all week.

For more banana oatmeal breakfast recipes, try our Banana Baked Oatmeal with Greek Yogurt, Banana Baked Oatmeal Cups with Greek Yogurt, or Banana Oatmeal Muffins.

Close-up of moist banana oatmeal bar with tender oat crumb and chocolate chips.

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Why you’ll love our healthy banana oatmeal bars!

Banana Oatmeal Bars with Greek Yogurt are one of those recipes that prove wholesome snacks can be genuinely delicious. 🍌 Made with just a handful of everyday ingredients, they’re naturally sweetened with ripe bananas, packed with hearty oats, and finished with a few dark chocolate chips for just the right amount of sweetness. They’re perfect for breakfast, an afternoon snack, or meal prep for the week ahead.

The inspiration came from our popular banana baked oatmeal with Greek yogurt. Louise and I loved how the yogurt made that recipe soft and tender, so we wondered if it could do the same for oatmeal bars. After several test batches and a few small tweaks, we found the perfect balance. The Greek yogurt is the secret ingredient, keeping the bars moist and soft without the dense, gummy texture that many oat bars have. ✨

We also used less peanut butter than most recipes, letting the banana flavor shine while keeping the bars lighter and more balanced. The result is a snack that slices beautifully, stays tender for days, and all without any added sugar or sweeteners.

These bars are fiber-rich, protein-rich, and naturally gluten-free when made with certified gluten-free oats. They fit beautifully into a Mediterranean-style eating pattern and are an easy way to keep a nutritious homemade snack in the fridge, making wholesome choices simple whenever hunger strikes. 💛

P.S.: For more Greek yogurt breakfast ideas, try our Greek Yogurt Overnight Oats, Banana Overnight Oats with Greek Yogurt, or Greek Yogurt Banana Pancakes.

Ingredients

Full ingredients and substitutions are in the recipe box below.

Ripe bananas, Greek yogurt, oats, peanut butter, vanilla, chocolate chips on marble countertop.
  • Bananas: use very ripe, spotty bananas for the best natural sweetness and soft texture. Substitute mashed sweet potato or pumpkin puree for a less sweet twist.
  • Greek yogurt: keeps these healthy banana oatmeal bars soft, moist, and not gummy. Use low-fat Greek yogurt, full-fat Greek yogurt, or Skyr for even more protein. For a dairy-free version or if you don’t have Greek yogurt, substitute unsweetened applesauce or an extra mashed ripe banana.
  • Peanut butter: adds richness and helps bind the bars. Substitute almond butter, cashew butter, sunflower seed butter, or tahini for a nut-free option.
  • Vanilla extract: makes the bars taste sweeter and more like banana bread. Substitute cinnamon, pumpkin spice, or a little orange zest.
  • Rolled oats: give the bars structure and make them a hearty make ahead breakfast. Use certified gluten-free oats if needed, or quick oats for a softer texture.
  • Dark chocolate chips: add just enough sweetness without making these feel like dessert. Substitute chopped dark chocolate, chopped walnuts, pecans, raisins, dried cranberries, or cacao nibs for banana oat snack bars with a different texture and flavor.
Banana oatmeal bars on baking paper with melted chocolate chips.

How to Make Banana Oatmeal Bars

1. Make the banana oat mixture

Preheat the oven to 375°F (190°C). Line an 8×8-inch baking pan with parchment paper, leaving some overhang on two opposite sides to use as handles later.

Mash the ripe bananas in a large bowl until mostly smooth. Add the Greek yogurt, peanut butter, and vanilla extract, then stir until creamy and well combined.

Add the rolled oats and dark chocolate chips. Stir again until the mixture is evenly mixed and quite thick.

Step 1 Rolled oats and chocolate chips stirred into thick banana mixture.

2. Press and bake

Transfer the mixture to the prepared pan. Spread it out evenly, then press the top firmly with the back of a spoon so the bars bake into an even layer.

Sprinkle a few extra chocolate chips on top, if you like.

Bake at 375°F (190°C) for 12 to 15 minutes, or until the center looks set and feels slightly firm. The bars will continue to firm up as they cool, so don’t overbake them.

Step 2 Banana oat mixture pressed evenly into parchment-lined baking pan.

3. Cool and slice

Let the banana bars with oats cool completely in the pan. This helps them slice cleanly and hold their shape.

Lift the bars out using the parchment paper, then cut into squares. Enjoy right away, or refrigerate them for an easy grab-and-go breakfast or snack throughout the week.

Step 3 Baked banana oatmeal bars cooling and sliced into neat squares.

Tips

  • Use very ripe bananas: Bananas with plenty of brown spots are sweeter, mash more easily, and give the bars the best flavor and moisture.
  • Measure the mashed banana: Aim for about 1 cup. Too little can make the bars dry, while too much may keep them from setting properly.
  • Choose rolled oats: Old-fashioned rolled oats give the best chewy texture. Quick oats work too but make the bars softer.
  • Use thick Greek yogurt: Thick Greek yogurt is the secret to soft, moist bars that aren’t gummy. Low-fat, full-fat, and Skyr all work well.
  • No Greek yogurt? Substitute ⅓ cup unsweetened applesauce or ½ cup mashed ripe banana (about 1 additional banana). Applesauce keeps the bars lighter, while extra banana makes them even softer with a stronger banana flavor.
  • Use natural peanut butter: Stir it well before measuring so the oil is fully incorporated. Natural peanut butter gives the cleanest flavor.
  • Press the mixture firmly: Use the back of a spoon or measuring cup to compact the mixture into an even layer so the bars hold together after baking.
  • Don’t overbake: Bake just until the center is lightly set. The bars will continue to firm up as they cool, so there’s no need to leave them in longer.
  • Cool before slicing: Let the bars cool completely for clean slices and the best texture.
  • Store in the fridge: Keep the bars in an airtight container in the refrigerator for up to 1 week or freeze them for up to 3 months.

Frequently Asked Questions

Can I make banana oatmeal bars without Greek yogurt?

Yes. Replace the Greek yogurt with ⅓ cup unsweetened applesauce or ½ cup mashed ripe banana (about 1 additional banana). Applesauce keeps the bars a little lighter, while extra banana makes them softer with an even stronger banana flavor.

Can I use quick oats instead of rolled oats?

Yes. Quick oats work well, but they’ll give your banana oat bars a softer, less chewy texture. Rolled oats are our favorite because they create sturdier bars that hold their shape better.

What else can I add to these bars?

This recipe is easy to customize. Try chopped walnuts, pecans, raisins, dried cranberries, shredded coconut, pumpkin seeds, sunflower seeds, or chopped dark chocolate. Keep the total amount of add-ins to about ½ cup so the bars stay together.

How do I store these Banana Oatmeal Bars with Greek Yogurt?

Let the bars cool completely, then store them in an airtight container in the refrigerator for up to 1 week. They also freeze well for up to 3 months. They’re perfect for healthy banana snacks or a quick breakfast—just thaw overnight in the fridge or let them sit at room temperature for 10 minutes before enjoying.

How do I know when the bars are done?

The bars are done when the center looks set and feels slightly firm when gently pressed. Don’t wait for them to become hard in the oven. They will keep firming up as they cool, which keeps the texture soft and moist instead of dry.

Why are my banana oatmeal bars falling apart?

They may need more cooling time. These bars slice best once they are completely cool, and even better after chilling in the fridge. Also, make sure to press the mixture firmly into the pan before baking so the oats, banana, yogurt, and peanut butter hold together.

Can I make these without peanut butter?

Yes. Substitute almond butter, cashew butter, or sunflower seed butter. Sunflower seed butter is a good nut-free option, while almond butter gives these banana breakfast bars a milder flavor. For a lighter taste, tahini also works, but it will make the bars slightly more savory.

More Healthy Oat Snacks and Breakfast Treats

  1. Healthy Banana Cookies
  2. Healthy Breakfast Cookies
  3. Healthy Granola Bars
  4. No-Bake Oat Bars
  5. Banana Bread Energy Balls
  6. Peanut Butter Banana Overnight Oats
  7. Peanut Butter Banana Baked Oatmeal
  8. Healthy Banana Nut Muffins

For even more meal-prep inspiration, explore our favorite healthy make-ahead breakfast recipes.

If you try this Banana Oatmeal Bars Recipe please leave a 🌟 star rating and let us know how it turned out in the comments—we love hearing from you.

Banana oatmeal bars with Greek yogurt arranged on baking paper in daylight.

Banana Oatmeal Bars with Greek Yogurt (No Sugar)

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These Banana Oatmeal Bars with Greek Yogurt are soft, naturally sweet, and perfect for meal prep. Made with wholesome ingredients and no added sugar, they're an easy grab-and-go breakfast or healthy snack for the week.
Prep Time: 10 minutes
Cook Time: 12 minutes
Total Time: 22 minutes
Servings: 12 bars
Course: Breakfast, Snack
Cuisine: American

Ingredients 

  • 2 ripe bananas 1 cup / 240 g mashed
  • cup Greek yogurt
  • cup peanut butter
  • 1 teaspoon vanilla extract
  • 2 cups rolled oats
  • ¼ cup dark chocolate chips plus 1 tablespoon for topping

Instructions 

  • Prepare the batter: Preheat the oven to 375°F (190°C). Line an 8×8-inch baking pan with parchment paper, leaving some overhang on two sides.
    Mash 2 ripe bananas in a large bowl. Stir in ⅓ cup Greek yogurt, ⅓ cup peanut butter, and 1 teaspoon vanilla extract.
    Add 2 cups rolled oats and ¼ cup dark chocolate chips, then mix until a thick batter forms.
    Step 1 Rolled oats and chocolate chips stirred into thick banana mixture.
  • Bake: Spread the mixture evenly in the prepared pan. Press it down firmly with the back of a spoon to compact it into an even layer, then sprinkle with a few extra chocolate chips, if you like.
    Bake at 375°F (190°C) for 12 to 15 minutes, or until the center is just set. Don't overbake—the bars will continue to firm up as they cool.
    Step 2 Banana oat mixture pressed evenly into parchment-lined baking pan.
  • Cool and slice: Let the bars cool completely in the pan. Lift them out using the parchment paper, cut into squares, and enjoy. Store leftovers in an airtight container in the refrigerator for up to 1 week.
    Step 3 Baked banana oatmeal bars cooling and sliced into neat squares.

Notes

Substitutions
  • Bananas → Mashed sweet potato or pumpkin puree.
  • Greek yogurt → Low-fat Greek yogurt, full-fat Greek yogurt, Skyr, unsweetened applesauce, or extra mashed ripe banana.
  • Peanut butter → Almond butter, cashew butter, sunflower seed butter, or tahini.
  • Vanilla extract → Cinnamon, pumpkin spice, or orange zest.
  • Rolled oats → Certified gluten-free rolled oats or quick oats.
  • Dark chocolate chips → Chopped dark chocolate, walnuts, pecans, raisins, dried cranberries, or cacao nibs.
 
Tips
  • Use very ripe bananas: Brown spots mean sweeter, softer bars.
  • Measure the banana: About 1 cup mashed gives the best texture.
  • Choose rolled oats: They make the bars chewier than quick oats.
  • Use thick Greek yogurt: Low-fat, full-fat, or Skyr all work well.
  • No Greek yogurt? Swap in ⅓ cup applesauce or ½ cup mashed banana.
  • Use natural peanut butter: Stir well before measuring.
  • Press the mixture firmly: This helps the bars hold together.
  • Don’t overbake: The bars will firm up as they cool.
  • Cool completely: For clean slices and the best texture.
  • Store chilled: Refrigerate for up to 1 week or freeze for up to 3 months.

Nutrition

Serving: 1 of 12, Calories: 143kcal, Carbohydrates: 19g, Protein: 5g, Fat: 6g, Saturated Fat: 2g, Polyunsaturated Fat: 2g, Monounsaturated Fat: 2g, Cholesterol: 0.4mg, Sodium: 9mg, Potassium: 202mg, Dietary Fiber: 3g, Sugar: 4g, Vitamin A: 17IU, Vitamin B6: 0.1mg, Vitamin C: 2mg, Vitamin E: 0.1mg, Vitamin K: 1µg, Calcium: 35mg, Folate: 26µg, Iron: 1mg, Manganese: 1mg, Magnesium: 42mg, Zinc: 1mg

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Nico and Louise in front of the Consolazione church in Todi

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