Oh! There are a number of Restaurants and most mennus are in Portuguese & English &/or Chinese, Bahia in Marginal.. & loads others in Ilha de Luanda... i.e. Miama, Jango Valeiro, Lookal, the grill... its a whol;e stree full of restaurants you'll see as you drive along... And finally on Ilha you'll find open stall restaunrants that are somewhat informally formal (hope that makes sense!) and they will normally sell you a traditionally grilled fish & other Angolan goodies that go with it, i.e. boiled banana plantae, mandioca (Cassava), sweet potatoes, etc.. I like..
Good luck & bom Apetite