I prefer the big New York style slices. Topping it is easy: pepperoni and chocolate sauce. Take her out of the oven when she's done, add the chocolate sauce, give it a few minutes so it doesn't burn the tongue, and it's eating time! Naturally, I'd fold the monster slice and start from the vertex to the crust, which is obviously stuffed with cheese.
Ranch is good instead of chocolate sauce, but I've never had a cavity with even worse eating habits, so why not?