It's really not that much when you're fat. A Domino's medium pizza is over 1600 calories and I can eat that as a thin person. Add in soda, dessert, etc. And if you have a 'cheat day' which is a common pattern, then it's trivial.
Yes, I know that Cheesecake Factory & such have some high calorie foods on the menu as a sibling comment mentions. I also know that I avoid that place like the plague because I hate wasting food and I can't even eat half of most of their dishes. The few times I have gone, I literally looked at the calories listed on the menu to find suitable items that I wouldn't end up wasting.