get about a pound of talapia man, throw in i would say 2/3 cup salsa of your choice and 2/3 cup of sharp cheddar cheese. put the fish in your pan and spread the salsa over first, then throw on the cheese, then crush up some fritos and throw it on top and bake the thing for 15-20 minutes at 400 and you wont have to worry about the fish smell. Use some avocado or sour cream to top with once out of the oven.
If your looking strictly mahi mahi you can throw some onions, garlic, mushrooms and olive oil in a pan and warm it up. Once it looks like its cooking throw your mahi on top and and add some cooking wine and lemon juice. Cover for like 5 minutes then flip the fish for another 5. Take the fish out and add a little water and cornstarch to the sauce and boil it till it thickens and pour it over the fish. Both of these i make every couple of months.