Prep the pan: Line an 8×8 baking dish with parchment paper and preheat oven to 375°F.
Mix the wet ingredients: In a large bowl, combine banana, cashew butter, orange juice, maple syrup, melted coconut oil, flax egg, and vanilla. Stir until smooth.
Add dry ingredients: Stir in oats, baking soda, baking powder, cinnamon, and salt. Let the mixture sit for 10 minutes so the oats absorb the liquid.
Fold in mix-ins: Stir in pecans, dried cranberries, and orange zest.
Bake: Spread evenly into the prepared pan and bake for 15 minutes.
Cool and slice: Let cool completely before slicing into 12 bars.