My friend and I ended up at the Bellagio (we were staying at the Imperial Palace - helloooo, culture shock!) because he'd read that Olives had a decent vegetarian selection, which they most certainly did not. Unwilling to throw down serious money but still wanting late lunch, we stumbled upon Snacks.
I would like to note that this is not really a snack bar. Grilled veggie sandwiches and caramel hazelnut brownies are not snacks, especially when the brownie is SIX DOLLARS. The veggie sandwich, though, is darn good, and big. A side of fries was pretty cheap, and the portion was generous. The plates are plastic and if you need to take half your sandwich with you, they give you a lid that fits right over the plate. I was extremely impressed. We also got cookies to eat later. The peanut butter one was decent, but the oatmeal raisin was great. Shoulda bought one for the ride home...