I do all my baking during the summer months in my gas grill. After all, the grill is nothing but an outdoor oven. The temp remains constant and the cavity is big enough to handle any baking dish. As mentioned above, gas grills don’t give out much smoke (when the inside is clean), and therefore they’re suitable for baking. Don’t miss understand me, I like smoke flavor as much as anyone, but not on all desserts. I’ve used a verity of baking dishes in the process to include glass; I’ve never had any problems with them. The only thing you have to watch out for is when baking casseroles with cheese used as topping, you must cover the dish with foil for the majority of cooking time. For some reason, the cheese browns too fast and burns quickly when baking inside of a grill. I always bake my mac&cheese and scallop potatoes inside my gas grill; they always turn out very well. And the smoke flavor goes well with these dishes, so a charcoal grill will work just as well.