Lime Basil Grilled Swordfish Steaks

In a large ziplock bag, combine 1/4 cup olive oil, 2 tbsp freshly squeezed lime juice, 1 tbsp chopped fresh basil, 1 garlic clove, minced, 1/2 tsp salt and 1/4 tsp pepper. Add 4 (5-6oz) swordfish steaks and coat the fish with marinade. Let it sit for 15 minutes. Meanwhile, prepare the grill. Grill swordfish over medium high heat about 4-5 minutes per side, or until fish is cooked through. Cut zucchini lengthwise and grill alongside with fish, if desired. Diced tomato for garnish, optional