In a large bowl, whisk together the rolled oats, protein powder, sea salt, and chia seeds until evenly distributed.

Heat the peanut butter and honey in a microwave-safe container for 30 seconds, then stir in the vanilla extract.

Pour the peanut butter mixture into the dry ingredients and stir until the oats are fully coated.

Gently fold in the chocolate chips.

Line an 8x8 inch baking pan with parchment paper, leaving an overhang for easy removal.

Transfer the mixture into the pan and press down firmly to create a compact layer.

Place the pan in the freezer for 10 minutes to set, then remove and cut into 10 rectangular bars.