The Porta Pizza Oven. Great for RVs, bad for rush hour If I had an RV or camper and was looking to bake a pizza or cake while camping, the Portable Pizza Oven might possibly be a good option to add to my camping gear. But if I was stuck in rush hour and was a tad hungry, using this while driving would be a recipe … for disaster. The Porta Pizza Oven plugs into the 12 volt cigarette lighter receptacle. It has heating elements above and below for all around cooking and can handle a small c