Peel and dice fruit, peppers and onion into small pieces. Place the peeled mixture in a frying pan with butter and cook untill soft.

While this is cooking Rub olive oil on one side of the Wahoo steaks. Place oiled side on a hot grill, cook until this side is brown. (It will not be cooked) Do not flip the fish on the other side. Remove from grill and place in glass baking dish. Spoon on the the salsa fron the pan over the wahoo and top it with the chopped Basil and place in a 350 degree over for 15 to 20 minutes.