01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper.
02 - Combine rolled oats, almond flour, protein powder, ground cinnamon, baking powder, and salt in a large mixing bowl. Stir thoroughly.
03 - In a separate bowl, whisk together eggs, unsweetened almond milk, maple syrup or honey, unsweetened applesauce, melted coconut oil, and vanilla extract until fully blended.
04 - Pour wet mixture into dry ingredients and mix until just incorporated. Gently fold in chopped roasted almonds.
05 - Spread batter evenly in the prepared pan. Sprinkle sliced almonds over the top.
06 - Bake for 22 to 25 minutes, until edges are golden and a toothpick inserted in the center comes out mostly clean.
07 - Cool completely in the pan. Lift out and cut into 12 squares.
08 - Store squares in an airtight container at room temperature for up to 3 days or refrigerate for up to 1 week.