McDonalds.

I think McDonalds is generally way overpriced for what you get.
My 'frugal' go to is 2 Hot'n'Spicy McChicken sandwiches, add pickles, and a large Diet Coke. I can currently get out of there for $4.89 here in SoCal.
Cheap lunch!

Eatin Mickey Dees and drinkin diet coke.

Now that's funny.