Phoenix: I want great and late!
I work at a dinner-only restaurant. One of the drawbacks of working at such a place is that when my shift is done, there isn't much open anymore. Double-Doubles at In-N-Out can only be tolerated for so long, just like any place with a drive-through window or the eighteen kabillion ____berto's 24 hour Mexican joints that dot the Valley. Don't get me started on Denny's, IHOP, or 5 & Diner, puh-leeze. Here's what I know of for a late-night chow fix:
Pita Pit, Tempe: Generously sized pita wrap sandwiches, open til 2 AM, 3 Fri-Sat.
Delux, Phoenix: Ridiculously good burgers, open til 2 AM
Fatburger, Tempe: Not quite as good as Delux, but less costly. Open til at least 1, 2 Fri-Sat
Fate, Phoenix: Decent Asian food, open til 2 AM, 3 Fri-Sat
Boston's, Tempe: Pizza that's a step up from delivery dreck, open til 2 AM, 3 Fri-Sat
Nick's 24/7, Phoenix: Dreck pizza, but the only game in town when you want pizza after 3 AM
Richardson's, Phoenix: Open til midnight.
Are there any late-night essentials that I'm missing?
Thankfully, Nick's 24/7 has been closed for 4-5 months.
I think you've got the list pretty much covered. I can't think of any other late night places.
Slices Pizza? Tempe & Old Town. Decent pizza by the slice. Open till 2 me thinks. Good for when you want a $2 fix, not a $10 meal.
Mickey's Hangover. Old Town. Not sure how late they serve food, but they stay open very late. A lot of typical fatty apps, but also salads, etc. Interesting place.
AZ88 - I thought they served late.
That's all I can think of at the moment, but I'm sure you'll notice the trend: follow the nightlife folks!
If you're going to count places open until midnight then Cornish Pasty Co. is open until midnight Fridays and Saturdays.
I've thought the pizza at Boston's much better than delivery, but their pizza gets expensive by just ordering a few toppings (lord forbid you want to make your own pizza) and the restaurant can get way too noisy.