D'Carlo's: 1347 Main Street, 760 789-4340. The best place in Ramona to sit down and have dinner. Great steak, Prime Rib is their specialty. Everything on the menu is great and cheap for the quality of the food.
burgers and diners
Boll Weevil: 2548 Main Street, 760 788-1392. Good big burgers and fries, a good country joint to go watch the game and hang out. This place is pretty classic Ramona.
Ramona Cafe: 628 Main Street, 760 789-8656. This is some of the best diner food around and the best place in Ramona to have breakfast.
mexican food
Like every town in San Diego County Ramona has a bunch of great Mexican food that can be hard to find if you don't know the area.
La Cocina: 681 Main Street, 760 789-8332. Excellent burritos and salsa, but everything they have is great also. This is a good place to get a quick meal.
El Michoacan: 780 Main Street. A big open restaurant with a wood fire pit, I recommend the Carne Asada, but it is all good. This is more of a place to sit down and enjoy a beer.
Mañana's: Main St. Solid fast food Mexican, open 24 hours.
Mi Ranchito: 1028 Main Street, 760 789-0368. Quick and cheap, the crazy fries are pretty good.