El Rincón del Alfil Guadalajara Restaurant
I want to suggest to you El Rincón del Alfil restaurant the next time you're in town. I don't go too often because it's far from where I live, but when my sister visits me she insists on going at least once a week.
The food is great, pretty much affordable (I particularly love their burgers), and varied. They have a "comida corrida" kind of option, and a few, but not many, menu options.
Either is great, but the whole meal is cheaper. I also recommend it if you want to actually be able to chat with the people you're with instead of hearing blasting music.
It's in Lopez Cotilla, a few blocks from Templo Expiatorio.