We spent a weekend in Vegas last month with a group of family and friends. The first evening in Mandalay, we gathered in the lobby around 8ish and performed the "what do you want to do for dinner" waltz. Everyone had a different idea.
The nice thing about Red, White & Blue is that it's general enough to meet a group such as the aboves needs. It really doesn't have a specialty. It's just a typical american restaurant stuck in a typical casino. Want steak? Check. Want salad? Check. Want a burger? Or fish? Or chicken? Check. Stella available? Two checks....
It isn't going to knock your socks off. I wouldn't go out of my way to go here. But for a group, it's probably the best restaurant in Mandalay Bay.