Fish and fruit salsa is a fantastic combo. I like to keep things simple, so I will typically add a squeeze of lemon or lime juice and a little bit of salt and pepper to my fish before I grill it. If you want a little spice, add a little chili powder and some paprika. Steakier fish like mahi-mahi or swordfish grills well. Salmon is another good choice for grilling. If you use a lighter white fish, broiling is a great way to cook fish. Give it a quick mist with cooking spray along with your spices.