Preheat the oven to 350 degrees F. Grease a 12-count muffin tin (or line with paper liners).
In a large bowl, combine the mashed bananas, egg, olive oil, honey, almond milk, and vanilla. Whisk until well combined.
In another bowl, combine the flour, cinnamon, baking soda, and salt. Stir well, then add the blueberries to the bowl (tossing with the flour will help prevent sinking when baking).
Pour the dry ingredients into the wet ingredients. Stir until combined.
Portion the batter into the prepared muffin tin. Bake at 350 degrees F for 18-23 minutes, or until the muffins are cooked through and a toothpick pulls out clean from the center.
Let cool in the pan, then enjoy.
Notes
If you substitute all-purpose flour for whole wheat flour, note that you may need slightly less liquid in the recipe, depending on the size and texture of your bananas.
Nutrition analysis (approximate per muffin): 175 calories, 7 g fat, 1 g saturated fat, 165 mg sodium, 27 g carbohydrate, 2.5 g fiber, 14 g carbohydrate, 8 g added sugar, 3 g protein, Vitamin D: 1%, Calcium: 2%, Iron: 4%, Potassium: 4%