Las Mañanitas -Tex Mex. Mexican restaurant Barcelona. Las Mañanitas is a top ranked cosy, family owned Mexican restaurant in the centre of Barcelona. It ofers around 30 authentic and homemade Mexican tex-mex dishes including quesadillas, queso fundido, nachos, Fajitas mexicanas, soups and more, all prepared in-house and using natural and fresh ingredients. The atmosphere is colourful and friendly and instantly makes you feel right at home. The menu also includes a varied selection of vegetarian meals, so nobody will be left out. Make sure to pair your meal with one of their tasty Margaritas, or sample the wide selection of fine Tequilas, wine and of course, Mexican Beer.