Preheat an outdoor grill to medium-high heat; about 425˚F to 450˚F.
Pat dry the fish fillets and set on a plate.
In a mixing bowl, whisk together the oil, garlic, basil, salt and pepper. Brush fish with the oil mixture.
Brush grill grates with oil so that the fish doesn’t stick.
Grill the fish for 4 to 5 minutes per side, or until nice golden grill marks appear and the flesh is set. Don’t overcook or the fish will be dry and rubbery.
In the meantime, prepare the salad by combining prepared tomatoes, basil, oil, garlic, salt and pepper in a mixing bowl; stir until well incorporated.
Remove fish from the grill and transfer to a plate. Add some salad over each fish fillet.
Grate fresh parmesan cheese over the salad and drizzle with balsamic glaze. Serve and enjoy!
Stove Top Method
Prepare the fish and tomato salad per the instructions above.
Heat a nonstick pan or a cast iron skillet over medium-high heat.
When pan is hot, cover the bottom of the pan with olive oil.
Add the Mahi Mahi to the pan and cook for 3 to 4 minutes per side, or until set.
Remove from pan; garnish with prepared tomato salad and serve.
Notes
Avoid Overcooking: Remove Mahi Mahi when it's golden brown and set to prevent it from becoming dry. To check for doneness, you can use an instant-read meat thermometer and remove the fish from the grill when its internal temperature registers at 145˚F.
Pat Dry Before Seasoning: Always dry your fillets with paper towels before seasoning to enhance browning.
Grease Your Cookware: Oil your pan or grill grates before cooking to prevent sticking.
Serve Immediately: Enjoy your Mahi Mahi hot; serve right after cooking for the best flavor and texture.