Prime at Bellagio has great steak, think I spent $90ish for myself, amazing meal
Javiers at Aria was good, maybe $130 for me and the wife? idk if it was really worth that much, we had a resort credit we used there
The Jean Phillipe fancy dessert place at Aria is awesome
Todd English is great
Dirt cheap and good pizza at Secret Pizza or Hidden Pizza at Cosmo ($10 or $12 for a couple slices, the place doesn't really have a name, it's just a pizza place hidden down a hallway on the second level up from the casino)
The restaurant at the Eiffel Tower is ok, not amazing, prob worth the price just for the cool view of the Bellagio fountains across the street
Mediterranean place downtown, can't remember the name, but great gyros, only open like normal city hours instead of 24/7 unfortunately
I always get one of those $1.99 foot long hot dogs at Casino Royale because it's a tradition for me. They are god awful
My favorite budget location is Planet Hollywood followed by Flamingo because I like the locations slightly better but Monte Carlo is decent too. I agree the casino feels too narrow and cramped BUT it is also very clean as clams referenced. We stayed at NYNY on our first trip and it's cheesy as hell but the rooms are decent, cheap and a good casino. I like to be further north if possible tho.