Another family pleaser is Tu Casa (70 Washington Ave., 207- 828-4971, www.tucasaportland.com). It serves authentic Salvadoran fare similar to Mexican, but lighter in a no-frills dining room. Theres a window for take-out orders, but grab a seat for table service. Begin with the appetizer puposas, the national dish of El Salvador, move onto the enchilada Salvadorena, or maybe the pollo enmole, marinated chicken paired with the homemade mole sauce. Escape with your wallet intact; nothing costs more than $12, and most items are far less.