In a large mixing bowl, combine the rolled oats, clean protein powder, mini chocolate chips, chia seeds or ground flax seeds, and raisins. Mix until evenly distributed.
In a separate bowl, mix together the natural peanut butter, lite coconut milk, and raw honey. Stir until the mixture is smooth and well combined.
Pour the wet ingredients into the dry ingredients. Using a spatula or wooden spoon, mix everything together until fully combined. The mixture should be thick and sticky.
If the mixture feels too dry, add more coconut milk, one tablespoon at a time, until it reaches a dough-like consistency. It should hold together when pressed.
Transfer the mixture to your prepared 9x9 inch baking dish. Press it down firmly and evenly using your hands or a spatula.
Cover the dish with plastic wrap or foil and place it in the refrigerator for at least 1 hour to set.
Once set, remove the bars from the refrigerator. Lift them out of the pan using the parchment paper and cut them into squares or rectangles. Enjoy your Easy No-Bake Workout Bars!