5240 Cemetery Rd., Hilliard
We've been eating at this wacky-looking, Latin-tinged Hilliard hotspot for a very long time, and have never ever had a bad meal there. And nothing's gonna make you feel as happy and full for cheaper, either. Their breakfast is great, but lunches and dinners are just as good - try the authentic Texican-style chili, the Cuban Chicken, the Creole Mac and Cheese, the Pan-Seared Vegetables, the Fettuccini Caliente, the ... well, you get the point.
Runners-up: Blue Danube, Jack's Diner