Coat the fish fillets with 1 Tbsp of olive oil. Sprinkle salt and pepper. Reserve.
Using a skillet, add 1 Tbsp of olive oil over high heat. Add the minced garlic and sauté for 1 minute.
Add the chopped tomato, sliced sage and season with salt and pepper. Stir and mix well.
Cover the skillet and let it cook for 5-6 minutes.
Using another skillet, add a drizzle of olive oil over high heat. Add the Grouper fillets and sear them for 2-3 minutes each side. It might require a little longer depending on the thickness of the fish.
Once fish is cooked through, prepare to serve.
Serve the tomato sage sauce first. Place the fish fillets on top. Garnish with sage leaves. Sprinkle freshly ground pepper.
Serve it hot. Enjoy!