Ten budget restaurants in Córdoba worth knowing about, starting with Bar Santos — where a wedge of the most famous tortilla in the city costs €2 and the counter is two minutes from the Mezquita. The list covers the full range: a €10 menú del día at El Astronauta on Calle Diario de Córdoba, a Syrian family kitchen on Calle Lucano where a full meal with fresh juice runs €12 to €20, and neighbourhood tabernas in the patio quarter where locals eat at prices the Judería tourist circuit never matches.
The structural reason Córdoba is good for budget eating is the menú del día: a two- or three-course set lunch with drink, typically €12 to €15, available in almost every sit-down restaurant between 1pm and 3:30pm. The custom traces back to the 1964 franquist decree requiring restaurants to offer an affordable workers' meal. The result, half a century later, is a citywide institution that happens to be the best deal in Spanish dining. Every restaurant in this guide participates in some version of it. The same kitchen, the same food, at lunch prices that bear no relation to the evening à la carte.
This is worth stating plainly: several places on this list have dinner prices that stretch to €25 or €30 per person. At lunch, with the menú del día, the same kitchen costs half that. La Fuente 12, El Rincón de Carmen, and Bodegas Mezquita all fall into this category. The budget approach here is timing, not lowering your expectations.
The streets around the Mezquita are thick with tourist menus at €12 to €18 that offer something approximating gazpacho and paella. You can eat much better for the same money — or less — ten minutes on foot from the main entrance. Bar Santos is the proof: it has been there since 1966, charges €2 to €3 for the best tortilla in the city, and accepts cash only. The tourists photograph the counter; the regulars order without looking up.