Renee Kohlman: Stay cool this summer with pizza on the grill

It’s that time of year again when you can’t fathom the thought of turning the oven on to cook food — unless your house is equipped with air conditioning, then I suppose you are one of the lucky ones.
But for the rest of us who sweat it out for the summer, cooking need not be just salads and ice cream. Though, that doesn’t sound so bad, does it? I make good use of the barbecue in the backyard, grilling up everything from steaks to vegetables and fruit. And, now, pizza. Wit