In a large mixing bowl, combine 2 cups rolled oats, 1 cup natural peanut butter, ½ cup honey, and ½ cup cocoa powder. Mix until well-blended and smooth.

Gently fold in ½ cup of chocolate chips into the oat mixture, ensuring even distribution.

Line an 8x8 inch baking pan with parchment paper and transfer the mixture into the pan, pressing down firmly until even.

Place the pan in the refrigerator and let it chill for at least 2 hours to set.

Remove the pan from the refrigerator and cut into squares or rectangles.

Store the cut bars in an airtight container in the fridge for up to a week.