I made pizza tonight for my daughters using English muffins. I made my own sauce but I know one of your kids can't have tomato based sauces. I don't know if this would work, but my kids love dressing so I was thinking maybe a creamy soy dressing or fat free ranch might work. I will have to try it. Anyways, I put rice cheese on mine, reg. moz. on theirs and baked it at 400 until cheese melts @ 10-15 min. I found the broiler worked better for the rice cheese, plus I like it crispy.