Nothing fancy but I visited Rancho Nipomo BBQ and deli last Thursday on these two recommendations.
I got the tr-tip torta and West Coast Chili Beans. Torta comes with jalapenos, onions, tomato, lettuce and special sauce (which I think is Tia’s sauce pictured upper right with salsa verde). The tri-tip was decent (not overdone or chewy) and decently portioned but I was glad I got it in torta form because it wasn’t quite good enough for the basic “meat on bread” option. They don’t have the prototypical Santa Maria bean side but the chili was very meaty, decent use of spices (but not spicy) and a nice thick tomato heavy consistency. Finally, there was a decent selection of garnishes and salsas with mild and spicy options in case you do order the meat on bread option and find it a little plain.