Line a squared baking dish with parchment paper. Add the oats, salt, and cinnamon to a large mixing bowl. Stir well.
Roughly chop the dark chocolate chips. Add along with the shredded coconut to the oat mixture.
Mix the peanut butter, honey, and vanilla extract in with the dry ingredients until combined.
Transfer the mixture to the prepared baking dish. Use a spoon or spatula to flatten the surface evenly.