11.   Heat the grill.

12.   Heat grill to medium.

13.   Heat a grill or grill pan until medium hot.

14.   Heat grill.

15.   I heated the grill to high and placed a fat round slice of onion on top.

16.   Meanwhile, heat grill to medium.

17.   Preheat broiler or heat a grill.

18.   Prepare and heat grill.

19.   Salt and freshly ground black pepper, to taste Heat the grill to high.