Preheat oven to 375°F and line a 12-tin muffin pan with muffin liners.
To a large bowl, add all wet ingredients and whisk to combine.
2 overripe bananas, 1 cup pumpkin puree, 1/2 cup light brown sugar, 1/3 cup avocado oil, 2 large eggs, 2 teaspoons vanilla bean paste or extract
Next, add dry ingredients (except chocolate chips) and stir until just combined. Gently fold in chocolate chips with a rubber spatula.
1.5 cups white whole wheat flour, 1 teaspoon baking soda, 2 teaspoons ground cinnamon, 1 teaspoon pumpkin pie spice, 1/2 teaspoon salt, 1/2 cup semi-sweet chocolate chips
Divide batter evenly into the prepared muffin tin. Bake for 23-25 minutes. Muffins are done when an inserted toothpick comes out clean, and when the muffins spring back when gently pressed on top.