In a mixing bowl, whisk together the peanut butter, brown rice syrup, brown sugar, egg and vanilla until smooth.
Add the oats, chocolate chips, coconut, chia seeds, and protein powder, and stir with a wooden spoon to thoroughly combine. The batter will be thick lick cookie dough.
Dump the mixture onto your baking tray and press it in using a wooden spoon or lightly damp hands.
Let the dough rest for 30 minutes.
Bake for 25 to 30 minutes, or until the bar mixture is golden brown around the edges.
Let cool for 30 minutes before cutting into bars. Leftovers can be stored in an airtight container at room temperature for a few days, or frozen to enjoy later.