Whisk egg
In a plastic container mix coconut, panko, salt and pepper
Cut mahi into 1-2 inch cubes
Heat oil in a large skillet pan
Add mahi to egg and toss to coat evenly then transfer to coconut/panko container (repeat for about 1⁄2 mahi cubes)
Once mahi cubes are in the coconut mix, place lid on container and shake to coat mahi
Transfer to skillet and cook for about 2-4 minutes on each side (until crust is golden brown)
Transfer to wire rack and cool
Repeat for other 1⁄2 of Mahi cubes (coat in egg, then toss in the coconut/panko mix) and cook in a large skillet
Serve with lime