I've been Grand Lux so many times...... not sober.
Chicken & waffle is my usual go to dish late night. It's a little different from the usual chicken & waffles since the fried chicken is chicken finger and waffles are your thick Belgian waffles. It doesn't look like much food but trust, it fills you up!
I LOVE their beignets. Came here for lunch once (the only sober time) and didn't really want the soup & sandwich combo most people were having so decided to just get fat and ordered the beignets. Thought it would only come with a few pieces but it comes in a basket! 4 different kinds of sauces to change things up, and the chocolate sauce is still the top for me. Raspberry sauce is a close second since I like the tartness!
It is a great place for breakfast/brunch/lunch and late night. The menu is huge so it's easy to find something that you'd like. Not my #1 choice as a dinner spot since there are so many great restaurants around the Strip.
There's actually another Grand Lux at the Venetian but I'm partial to the Palazzo more. Maybe it's cause it is slightly newer and I am a huge fan of the high ceiling haha.