Preheat oven to 350°F (175°C) and line a baking sheet with parchment paper.

Mix dry ingredients: Combine almond flour, rolled oats, protein powder, baking powder, baking soda, salt, and cinnamon if desired.

Combine wet ingredients: Whisk together honey (or maple syrup), applesauce, and eggs until smooth.

Create the dough: Pour wet mixture into dry mixture and stir until a cohesive dough forms. Add almond milk if crumbly.

Fold in mix-ins: Gently fold in chopped nuts and dried fruit until evenly distributed.

Form the biscuits: Portion tablespoon-sized amounts onto the baking sheet and flatten slightly.

Bake for 12-15 minutes until edges are golden and centers are set.

Cool biscuits on the baking sheet for a few minutes, then transfer to a wire rack to cool completely.