Menwell
Google
It's a very well located spot, close to UNESCO, easy parking place, access by metro, close to other facilities, and banks.
This restaurant has also, small vegetables garden and a very nice terrace.
They have menus like Burgers+pint at a affordable price, around 10 euros. They also serve fresh fries as snack.
They also have happy hour, but I didn't understand the schedule.
The price can fluctuate in between 3 or 5 euros for a pint, depends of (...) and you don't know what you are drinking.
The last time I drank beer here I got sick, stomachache. Strange Thing!