Sure Las Vegas has some incredible restaurants but we need to be honest about the prices. They are outrageous, $350 for two people? Find your way to a few places where good does not mean overpriced it means reasonable.
Important to note, if you are looking to be frugal while in Las Vegas consider the choice of hotel when making a decision on your Las Vegas vacation. Need a Deal to Vegas? Compare Prices on Las Vegas Hotels with Kayak.com, Expedia.com or Southwest Airlines. They should give you a good idea of what you can expect to spend on a Las Vegas vacation.
Need Las Vegas updates? Follow me on Twitter
Stay away from the beer and have yourself a bowl of chowder and the bread and crackers that come with your meal. For $10 you'll have a quality meal and you might have a decent conversation with the person sitting next to you.
Family style is a good way to invite the cheap people like myself into an establishment. Large portions, free bread and water get you out of here with a good deal.

Photo Courtesy of MGM mirageIf you like noodles you'll love this place. Personally, the Vietnamese noodles are a staple for me at Noodles in the Bellagio. You'll get out of here for a tiny amount on a relative scale to the rest of Las Vegas restaurants with far better quality.
The portions are large at the Cheesecake Factory and that usually means you can share. Order an Iced Tea and a Ceasar Salad and two people can load up on bread and a big salad for under $20.
I always include the Carnegie Deli in the cheap food category of my daily excursions. Lets face it, more than a pound of corned beef for about $11 means you can share a sandwich and a drink for less than $20.
A coke and a burger as you watch a game on the screens that surround the Burger Bar at the Mandalay Bay. Yes, you can order an outrageously expensive burger, but you don't have to. Go simple and your budget might include a beer.
The food is not over the top fantastic but it is cheap, consider that you most likely will have a beer and you might find this place does it for you. If you enjoy watching sports it makes this a great place.
I'll be honest even I was surprised by the prices at Ah Sin. What you get is quality food and a decent choice of en tree's all for a very reasonable price. Once again, don't order alcohol! Twenty feet away in the casino the drinks are free, don't balloon your bill with something you can get for free.
Bowl, drink, get a cheap meal. The restaurant is adjacent to the lanes and the food is typical of a chain, themed restaurant. It's reasonable and it won't break you.
It's good and its is priced right. Stay away from the appetizers or the bill can rise sharply, however, if you choose to go with the lettuce wraps ask for a few extra pieces of iceberg and you might have an entire meal in an appetizer.