Döner Kebap is a cheap alternative
It's pretty hard to mess up a pizza, especially if one of the main foods you deliver is pizza.
Plus, if you're a veggie/vegan, or you have gluten intolerances, pizza is still an option - as long as they get it right. I once had a nightmare scenario where a pizza place gave a vegan pizza to one of my co-workers with coeliac disease. When this person fell ill, the chef said "I thought they were just fussy".