Drizzle the zucchini with olive oil and sprinkle salt and pepper on it to taste. Grill on medium heat for about 5 minutes each side or until grill marks appear.
The main event here, is Ahi Tuna. Marinated in Bragg Liquid Aminos soy sauce substitute with sesame seeds rubbed on each side. Add a little salt and pepper to taste.
To sear as pictured, turn the grill up to high and let the grates heat to peak temperature. Turn it down to medium heat and immediately place the steaks (whole) on the grill for two minutes each side. If you leave it on much longer, tuna will cook all the way through. So that's to be cooked to your preference, though most people enjoy ahi tuna quite rare as pictured. Once pulled from the grill, enjoy as an actual steak or as pictured, sliced and placed on a bed of Spring greens.