<human>: What's the difference between a'regular' and a 'deluxe' pizza?
<bot>: The main difference between a regular and deluxe pizza is the toppings. A regular pizza typically has a few standard ingredients, like pepperoni or sausage, while a deluxe pizza may have more unique flavors and toppings such as spinach, mushrooms, or artichoke hearts. Additionally, the crust can also differ in texture and thickness. Regular pizzas tend to be thinner and crisper than deluxe pizzas.