The Best 5-Ingredient Baked Oats Bars (Healthy & Naturally Sweetened)

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By Gianna Poulef

Baked Oats

Baked Oats Bars are one of those recipes I make on repeat — especially on busy mornings when I want something wholesome, filling, and just a little sweet. These bars are soft, lightly sweetened with banana and maple syrup, and perfect for breakfast meal prep or an afternoon snack.

Thank you so much for being here. Truly. There’s something so comforting about turning a handful of simple ingredients into something nourishing and delicious. And these baked oats bars? They taste like banana bread met a soft oatmeal cookie.

If you love easy, healthy recipes like this, don’t forget to subscribe so you never miss a cozy kitchen moment with me.

Overview of Baked Oats Bars

These baked oats bars are naturally sweetened, packed with fiber, and made with just a few wholesome ingredients. No refined sugar, no complicated steps — just mix, bake, and slice.

Why You’ll Love These Bars

  • Only 5 simple ingredients
  • Naturally sweetened
  • Great for meal prep
  • Kid-friendly
  • Perfect grab-and-go breakfast
  • Customizable with mix-ins

What They Taste Like

Soft and slightly chewy, with gentle banana sweetness and warm maple flavor. Think of a cross between oatmeal and banana bread — but lighter and wholesome.

Ingredients

This Now, Make It Later!
  • 2 cups rolled oats
  • 1 large egg
  • 1 ripe banana, mashed
  • 3 tablespoons maple syrup
  • 1 teaspoon baking powder
  • ½ teaspoon cinnamon
  • ¼ cup chocolate chips
  • ¼ cup chopped walnuts or pecans
  • 1 tablespoon chia seeds
  • 1 teaspoon vanilla extract
  • Pinch of salt

Tools You’ll Need

  • Mixing bowl
  • Fork (for mashing banana)
  • 8×8-inch baking dish
  • Parchment paper

How to Make Baked Oats Bars

Step 1: Preheat the Oven

Preheat to 350°F (175°C). Line an 8×8 baking dish with parchment paper.

Step 2: Mash the Banana

In a bowl, mash the ripe banana until smooth.

The riper the banana, the sweeter your bars will be.

Step 3: Mix Wet Ingredients

Add the egg and maple syrup to the mashed banana. Whisk until combined.

Step 4: Add Dry Ingredients

Stir in rolled oats and baking powder. Mix until fully combined.

If adding cinnamon, vanilla, or mix-ins — fold them in now.

Step 5: Bake

Spread mixture evenly into prepared pan. Press gently to level the top.

Bake for 20–25 minutes, until lightly golden and set in the center.

Step 6: Cool & Slice

Allow to cool completely before slicing into bars.

They firm up beautifully as they cool.

What to Serve with Baked Oats Bars

  • Greek yogurt
  • Fresh berries
  • Drizzle of peanut butter
  • Almond butter
  • Warm coffee or tea

If you love healthy snacks, try:

Protein Cookie Dough
https://www.poulef.com/protein-cookie-dough

Healthy Banana Muffins
https://www.poulef.com/healthy-banana-muffins

No-Bake Brownie Bites
https://www.poulef.com/no-bake-brownie-bites

Mini Chocolate Lava Cakes
https://www.poulef.com/mini-chocolate-lava-cakes

Vegan Chocolate Chip Cookies
https://www.poulef.com/vegan-chocolate-chip-cookies

Tips for Perfect Baked Oats Bars

  • Use very ripe bananas for best sweetness.
  • Don’t overbake — they should be soft in the center.
  • Let cool fully before slicing.
  • Store in airtight container to keep moist.

Storage Instructions

  • Room temperature: 2 days
  • Refrigerator: up to 5 days
  • Freezer: up to 2 months
  • Reheat 10–15 seconds in microwave

General Information

Baked oats have become incredibly popular because they’re wholesome, customizable, and perfect for busy lifestyles. These bars are ideal for meal prepping and can easily be made gluten-free if using certified gluten-free oats.

They’re great for kids’ lunchboxes, post-workout snacks, or simple weekday breakfasts.

For more cozy inspiration, follow along on Pinterest:
https://www.pinterest.com/poulefrecipe/

Frequently Asked Questions

Can I make this vegan?

Yes — replace egg with flax egg (1 tbsp flax + 3 tbsp water).

Can I blend the oats?

Yes, blending creates a smoother texture like baked oat cake.

Can I double the recipe?

Absolutely — use a 9×13 pan.

Are these gluten-free?

Yes, if using certified gluten-free oats.

Can I add protein powder?

Yes, reduce oats slightly and add 1–2 tablespoons protein powder.

Conclusion

These 5-Ingredient Baked Oats Bars are simple, wholesome, and surprisingly satisfying. They’re soft, lightly sweet, and perfect for busy mornings when you still want something homemade.

They may be simple — but they’re absolutely magical.

Interactive Section

If you make these bars, tell me —
Did you add chocolate chips or keep them classic?

Share your creation on Pinterest:
https://www.pinterest.com/poulefrecipe/

I love seeing your kitchen creations

Nutritional Information (Per Bar – Approximate)

NutrientAmount
Calories150
Carbohydrates24g
Sugar8g
Fat3g
Protein4g
Fiber3g
Sodium90mg
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The Best 5-Ingredient Baked Oats Bars (Healthy & Naturally Sweetened)


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  • Author: Gianna Poulef
  • Total Time: 35 mins
  • Yield: 9 bars 1x
  • Diet: Vegetarian

Description

These 5-ingredient Baked Oats Bars are naturally sweetened with banana and maple syrup. Soft, wholesome, and perfect for breakfast meal prep or a healthy grab-and-go snack.


Ingredients

Scale

2 cups rolled oats

1 large egg

1 ripe banana, mashed

3 tablespoons maple syrup

1 teaspoon baking powder

Optional: 1/2 teaspoon cinnamon

Optional: 1 teaspoon vanilla extract

Optional: 1/4 cup chocolate chips

Optional: 1/4 cup chopped nuts

Optional: Pinch of salt


Instructions

1. Preheat oven to 350°F (175°C) and line an 8×8-inch baking dish with parchment paper.

2. Mash the ripe banana in a mixing bowl until smooth.

3. Whisk in the egg and maple syrup until fully combined.

4. Stir in rolled oats and baking powder. Fold in any optional add-ins if using.

5. Spread the mixture evenly into the prepared pan and gently press to level the top.

6. Bake for 20-25 minutes until lightly golden and set in the center.

7. Allow to cool completely before slicing into bars.

Notes

Use very ripe bananas for natural sweetness.

Do not overbake; the center should remain slightly soft.

Let bars cool fully before cutting for clean slices.

Store in an airtight container for best freshness.

  • Prep Time: 10 mins
  • Cook Time: 25 mins
  • Category: Breakfast
  • Method: Baked
  • Cuisine: American

Nutrition

  • Serving Size: 1 bar
  • Calories: 150
  • Sugar: 8g
  • Sodium: 90mg
  • Fat: 3g
  • Saturated Fat: 1g
  • Unsaturated Fat: 2g
  • Trans Fat: 0g
  • Carbohydrates: 24g
  • Fiber: 3g
  • Protein: 4g
  • Cholesterol: 20mg
The Best 5-Ingredient Baked Oats Bars (Healthy & Naturally Sweetened)
Gianna Poulef
CEO, Chef & Recipe Creator at BLYNO LLC | Website

I’m Gianna Poulef from Poulef Recipes. I love sharing perfected dishes from my kitchen. I’m sure they’ll earn a spot in your heart. Let’s savor this journey together!.

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