If that's what you thought....I'm here to challenge that assumption. Granted, I'm not pointing you to any place that specializes in molecular gastronomy, but it isn't all Burger Kings and Chucky Cheese's out in the Suburbs.
Without further delay, here's my list of places you should hit when life brings you to Elmhurst.
Rosticeria los Fernandez for their roast chicken dinner with ranchero beans. This isn't your typical mexican restaurant. I'm sure they have tacos and such, but the real draw here is the roasted chicken. They serve "meals" with a whole bird cut up with roasted jalepenos and long onions. You get a few sides, but avoid the "Gringo" items like mac and cheese or potoato salad. Go with the ranchero beans and dig in.
At some point, I'll do a more "fine" dining rundown of Elmhurst. At least for us, these are the places we go to most, so this made sense to start here.