01 - Preheat oven to 350°F. Line an 8x8-inch baking pan with parchment paper, leaving an overhang for easy removal.
02 - In a large bowl, whisk together eggs, applesauce, melted coconut oil, brown sugar, and vanilla extract until well blended.
03 - Stir in chopped kale, rolled oats, almond flour, walnuts, cinnamon, baking soda, and salt until evenly combined.
04 - Spread the mixture evenly into the prepared pan, pressing down lightly to form a uniform layer.
05 - Bake for 22 to 25 minutes until edges are golden brown and the center is set. Remove from oven and allow to cool completely in the pan.
06 - In a medium bowl, beat cream cheese and butter until smooth. Add powdered sugar and vanilla extract, continuing to beat until creamy. Add milk as needed to adjust consistency.
07 - Once bars have fully cooled, spread frosting evenly over the top and refrigerate for 30 minutes to set.
08 - Lift bars from the pan using the parchment overhang and cut into 12 equal pieces. Serve chilled or at room temperature.