I have been wanting to try this for such a long time and finally did it today!! Super easy and fast too. I pulled out about 4-5 frozen rolls (makes one pizza) and let them thaw overnight. I then rolled them out, covered both sizes with olive oil and threw them out on the grill. After both sides were lightly browned I put ranch dressing, bbq chicken (made a day earlier) and covered with cheese. Then I put them back on the grill until the cheese melted. One thing I would do different is maybe not grill the bottom size too long because after I left it out there to melt the cheese it burnt the bottom a bit...although that was our favorite part of the pizza. Huge hit!! Kids want to put their own toppings on them next time. Way faster then cooking it in the oven!