I guess it's similar, but here in the Netherlands we have "fresh" pizza's at the supermarket. They're kind of in-between frozen pizza's and a pizza delivery in terms of price, but imo they're actually by far the best. For 6-7 euros you get a pretty big pizza with fresh toppings, that's done faster than a frozen pizza or waiting for delivery, and also tastes really good. In the Netherlands it's common to live very close to a supermarket, so for me it's be like a 2 min bike ride to get myself a pizza.
USA here. I live in a neighborhood with a lot of Italian grocery stores and delis. One place sells premade pizzas; you can store in the fridge, or freeze, or cook it when you get home. I've never tried them myself, but there's at least one American brand that sells 'uncooked' pizza [as opposed to cooked and frozen]