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oatmeal bars with bananas

Banana Oatmeal Bars

  • Author: Katya
  • Prep Time: 15 mins
  • Cook Time: 40 mins
  • Total Time: 55 mins
  • Yield: 15 1x
  • Category: Breakfast
  • Method: Baked
  • Cuisine: American


These banana oatmeal bars are delicious and easy to make. Packed with bananas, pineapple, oatmeal, and finished off with a delicious glaze.


  • 3 large eggs
  • 3/4 brown sugar, packed
  • 1/3 cup buttermilk
  • 1/3 cup avocado oil
  • 1 1/2 tsp. vanilla extract
  • 1 1/2 cups old-fashioned oats
  • 1 cup all-purpose flour
  • 3/4 cup whole wheat flour
  • 1 Tbsp. baking powder (yes a tablespoon!)
  • 3/4 tsp. salt
  • 1 1/2 tsp. ground cinnamon
  • 2 (8 oz.) cans crushed pineapple (do not drain)
  • 3 small ripe bananas, chopped (about 2 cups)


  • 1/2 cup confectioners’ sugar
  • 1 1/2 Tbsp. fresh lemon juice


  1. Preheat the oven to 350 degrees F. Grease 9X13 baking pan and set it aside.
  2. Whisk eggs, brown sugar, buttermilk, oil, and vanilla in a medium bowl.
  3. Combine oats, both flours, baking powder, salt, and cinnamon in a large bowl. Add wet ingredients to the dry and stir until moistened. Do not over mix.
  4. Fold in pineapple and bananas. Pour into the prepared pan and bake for 35-40 minutes or until toothpick inserted in the center comes out clean.
  5. Transfer the cake in the pan to a wire rack to cool.
  6. While the cake cools, prepare the glaze. Combine the confectioners’ sugar and lemon juice in a small bowl, and whisk until smooth. Drizzle the cooled cake with the glaze. Cut into 15 squares and serve.


  • Substitutions: See post for a complete list of ingredient substitutions.
  • Storing the Bars: Keep bars covered at room temperature for up to 3 days, thereafter, refrigerate in an airtight container.

Keywords: breakfast bars, oatmeal bars