LX factory is a cool place to have a bit and stroll around. It has fun art galeries and restos. I only ate at LX cantina and it was very good. Definitely a point of interest. The Wynwood of Lisbon if I may say =)
Looking for Delicious Sushis in Lisboa, Sea Me is the best place! A must try is the Sardine Nigiri, sounds strange doesn't it but it will blow you mind! Reserve ahead or Go early, it's always full =)
Fidalgo means Gentleman in Portuguese but the food and ambiance are unpretentious. Must try are the Octopus Risotto and Bacalao topped with Egg and Fries. To die for!