Traditional southern Mexican cooking is still hard to find in the Valley. Thank goodness for Las 15 Salsas, a colorful Sunnyslope restaurant that specializes in homestyle Oaxacan fare. Appetizers include Oaxacan treats like memelitas con queso, thin corn patties topped with heaps of queso fresco and salsa. There's a whole menu of tlayudas — crisp, pizza-shaped tortillas lightly smeared with asiento (pork lard), refried beans, queso fresco, lettuce, and your choice of meat, including options like cecina (thinly sliced marinated beef). Other highlights include thick, dark mole negro; empanadas stuffed with melted Oaxacan cheese and squash blossoms; and a wonderfully cheesy, banana leaf-wrapped tamal Oaxaqueño.