I LOVE SECRET PIZZA. When it's delivered to me in the hotel room, when I have to stand in line, or especially when there's no line at all.
Obviously, it's not so secret anymore & the price isn't exactly "inexpensive," but not much is expected when it's located in the Cosmopolitan in the middle of the Vegas strip.
The white pizza is delicious, the mushroom olive pizza is delicious, and the pepperoni sausage pizza is delicious. A great greasy way to begin the night before drinking (to help with the getting too blacked out drunk) or to end the night (to soak up the alcohol!).
Definitely gets a little bit used to finding this place though, located in between two restaurants through a skinny little hallway filled with frames of records. The place is your typical over the counter pizza place.. but better.