Octopus is very good. As is the steak. Pretty much, everything is very good. Bar Isabel is a spanish restaurant that serves a lot of tapas and main courses that are meant to be shared by everyone. The menu shows a lot of the dishes in spanish with no descriptions in english underneath so if you don't understand it, then you'll need to have the waiter explain it to you. Pretty much, just get a bit of everything because everything is very tasty. The drinks menu is also extremely large. I personally enjoined the Isabel Old Fashioned.
If you want to come here, make sure you do a reservation because the place is almost always packed. The interior is dark and is extremely loud. It's kind of like a bar atmosphere that serves really good food. I definitely recommend coming here.