Slice the ends of the zucchini and gently scoop out the seeds to create a 'boat' for the filling
Drizzle both halves with olive oil and sprinkle with S&P. Rub it evenly into both halves
Place face down on the grill. Close top and grill for about 10 minutes. Check halfway through depending on the size of your zucchini
Remove and add to baking sheet. Divide the toppings evenly between both halves. Return to the grill for a few more minutes. You can keep them on the baking sheet if you want