On weekend mornings, the parking lot at Don Cahuamanta is filled with people waiting in line for their favorite menu items. The tiny restaurant, black and white on the outside, with "Bienvenidos" painted in bold letters across the arching doorway, is a neighborhood favorite. Don Cahuamanta specializes in its namesake, manta ray. The Sonora-style restaurant's logo shows a large gray stingray, and it serves the unique meat in rich soups and atop tacos. Inside the tiny restaurant, hungry customers chat exclusively in Spanish, ordering fresh plates of aguachile and smoked marlin tacos. Cold seafood cocktails are also available in large glass goblets or served inside coconuts. Get here early or be prepared to wait at this west-side seafood destination.