The Vulgar Chef's leftover pizza burger is a next level sandwich for people who love junk food. Also combining elements of a club sandwich, the stack consists of three square slices of pizza with spicy sausage for one layer and a cheeseburger as the other.
Depending on how adventurous you are and what kind of leftovers you find in your fridge, the sandwich could be very easily customized. For example, The Vulgar Chef used "combo pizza" for his leftover pizza burger, but you could also experiment with varieties such as meat lovers pizza or one with Italian sausage as a topping. You could then swap out the spicy sausage for bacon. Or another cheeseburger patty. Just saying.