These banana peanut butter bars are a simple to make 5-ingredient treat! They are egg-free, dairy-free, gluten-free, and great for a quick breakfast or snack!

Peanut butter banana oat bars served with raspberries and blackberries

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These 5 ingredient banana bars are so filling and packed with nutrients and healthy fats. I love baking with rolled oats as they are so nutritious and they bake so well into these soft and chewy bars. I used chocolate chips for these bars, but you can swap them for blueberries for bursts of berry flavor in every bite!

WHAT YOU’LL NEED

Here is what you’ll need to make these banana peanut butter bars:

Ingredients to make peanut butter banana bars
  • Bananas: The main source of sweetness for these granola bars. Make sure to use bananas that are overripe with several brown spots. The riper the bananas, the sweeter the bars!
  • Peanut Butter: For added healthy fats and flavor.
  • Rolled Oats: Rolled oats are packed with nutritious! Gluten-free rolled oats make these granola bars gluten-free.
  • Cinnamon: Provides an extra warm spice and enhances the sweetness of the bananas.
  • Chocolate Chips: Optional ingredient for a little added sweetness and fun!

PROCESS

  1. Mash the bananas in a bowl until smooth.
  2. Add in the oats, peanut butter, and cinnamon. Mix until combined.
  3. Fold in the chocolate chips until incorporated.
  4. Press this mixture into a parchment paper-lined loaf pan. Use a spatula to flatten and smooth out the top.
  5. Bake for 25 minutes, or until the edges are golden brown.
  6. Allow it to cool completely before slicing into bars.
Steps to make peanut butter banana bars

STORAGE INSTRUCTIONS

Once cooled, slice into bars and store in an airtight container in the refrigerator for up to 5 days. To freeze, store in a freezer-safe Ziploc bag for up to 3 months.

Peanut butter banana bars cut into squares

SUBSTITUTIONS

  • Peanut butter: The peanut butter may be replaced with any nut butter or seed-based butter.
  • Chocolate Chips: The chocolate chips may be replaced with blueberries. They may also be omitted completely!
Peanut butter banana bars served with raspberries and blackberries

RECIPE NOTES

  • Use overripe bananas for more sweetness. You may add a little maple syrup to the mixture if you prefer a sweeter bar, but I find that overripe bananas provide the perfect amount of sweetness on their own!
  • I used a 9 by 5 loaf pan for this recipe. Feel free to double the ingredients to make enough to fill a brownie pan!
  • Add in extra add-ins for more texture and taste! Crushed nuts are a great mix-in option for added texture!
Peanut butter banana bars

Here are some other sweet treats that you may like!

Peanut butter banana bars cut into squares

Peanut Butter Banana Oatmeal Bars

These banana peanut butter bars are a simple to make 5-ingredient treat! They are egg-free, dairy-free, gluten-free, and great for a quick breakfast or snack!
5 from 6 votes
Print Pin Rate
Course: Breakfast, Snack
Cuisine: American
Keyword: easy bars, homemade granola bars
Prep Time: 10 minutes
Cook Time: 25 minutes
Total Time: 35 minutes
Servings: 8 bars

Ingredients 

  • 2 medium overripe bananas about 1.5 cups when pureed
  • cup smooth peanut butter
  • 1 ¼ cups old fashioned rolled oats
  • ½ tsp ground cinnamon
  • ¼ cup chocolate chips (optional) plus more to sprinkle on top

Instructions

  • Preheat the oven to 350 degrees F (180 degrees C).
  • Mash the banana in a bowl until smooth.
  • Add in the oats, peanut butter, and cinnamon. Mix until well combined. Fold in the chocolate chips.
  • Press this mixture into a parchment paper lined pan loaf pan. Use a spatula to flatten and smooth out the top. Sprinkle more chocolate chips on top if desired.
  • Bake for 25 minutes, or until the edges are golden brown.
  • Allow it to cool completely before slicing into bars.

Notes

  • Use overripe bananas for more sweetness. You may add a little maple syrup to the mixture if you prefer a sweeter bar, but I find that overripe bananas provide the perfect amount of sweetness on their own.
  • I used a 9 by 5 loaf pan for this recipe. Feel free to double the ingredients to make enough to fill a brownie pan!
  • Add in extra add-ins for more texture and taste! Crushed nuts are a great mix-in option for added texture!

Nutrition

Nutrition Facts
Peanut Butter Banana Oatmeal Bars
Amount per Serving
Calories
156.03
% Daily Value*
Fat
 
7.39
g
11
%
Saturated Fat
 
1.95
g
12
%
Polyunsaturated Fat
 
1.83
g
Monounsaturated Fat
 
2.86
g
Cholesterol
 
1.04
mg
0
%
Sodium
 
51.72
mg
2
%
Potassium
 
221.73
mg
6
%
Carbohydrates
 
19.86
g
7
%
Fiber
 
2.76
g
12
%
Sugar
 
6.82
g
8
%
Protein
 
4.69
g
9
%
Vitamin A
 
19.25
IU
0
%
Vitamin C
 
2.57
mg
3
%
Calcium
 
13.93
mg
1
%
Iron
 
0.82
mg
5
%
* Percent Daily Values are based on a 2000 calorie diet.
TRIED THIS RECIPE?Rate in the comments below or tag @feedingtinybellies on Instagram!

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10 Comments

  1. 5 stars
    These were easy to make and my little guy loved them! How do I reheat after freezing? I will probably batch cook these the next time around.

    1. I’m so happy to hear that your little one loved them! I usually reheat them directly in the microwave for a few seconds until warmed through. You can also leave a few to thaw in the refrigerator overnight if your little one doesn’t mind eating them cold. Thanks for sharing your great feedback!

      1. If I have quick oats on hand, would that still work? I know it would be finer, so should I reduce or increase the amount used?

        1. Hi! I haven’t tried making these particular bars with quick oats, but I’ve noticed that when I try to use quick oats with other similar recipes, they tend to be soggier and harder to manage. I worry that the bites might end up a little so soggy and soft since the quick oats cook much more quickly than normal oats. If you only have quick oats on hand, I would suggest reducing the bake time significantly to hopefully prevent sogginess. I hope that helps!

  2. 5 stars
    Loved it. I made it using only one banana as the others were raw. I took half peanut butter and half almond butter and skipped the add-ins. I hope my fussy toddler loves it as much as me.

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