Prepare an 8x8-inch square pan by lining it with parchment paper, ensuring some overhang on the sides for easy removal. Set aside.
Place the oats in a large bowl and keep them ready for mixing.
In a separate heatproof bowl, combine chocolate chips, peanut butter, maple syrup, and coconut oil. Warm the mixture using a microwave in 30-second intervals or over low heat on the stovetop, stirring until smooth and fully melted.
Once the mixture is melted and homogenous, pour it over the oats. Stir thoroughly until every oat is evenly coated.
Spoon the mixture into the lined pan. Press down firmly using a spatula or the back of a spoon to create an even surface.
Refrigerate the pan for a minimum of 30 minutes, or until the bars are solidified. Once firm, lift out using the parchment paper and slice into 24 squares or rectangles.