Hola! So I recently moved the Madrid and it already seems like I have a favorite restaurant! In fact, I went to the restaurant "Lateral" in Santa Ana, Madrid yesterday and I loved it! I kind of reminded me of a restaurant in SoHo New York (yeah, I miss New York so so so so much).
Anyways, Lateral is a place I highly recommend if you're ever going to Madrid. It's not really expensive and it's such a cute location for a group of friends or a couple!
The tortilla de patatas and the gaspacho is a MUST HAVE!