Rey Azteca Mexican Restaurant
It's pretty good. I'm a connoisseur of Mexican food and to be really authentic you need to serve Licuados and Flautas as an appetizer. Flautas are only available in a combo meal. No Licuados at all :(
Ohiopyle Bakery & Sandwich Shoppe
Great sandwiches and desserts, as well as really friendly staff--highly recommended for a cheap, pleasant bite to eat either before or after Fallingwater.