How did mobile kitchens become popular with hipster gourmands? And just how much money can a popular truck make from a lunch shift? Zachary Crocket drops some napkins. SOURCES:Mariel-Leona Edwards, senior operations manager for Señor Sisig.Matthew Geller, founding president of the National Food Truck Association and C.E.O. of the Southern California Mobile Food Vendors Association.Evan Kidera, C.E.O. and co-owner of Señor Sisig. RESOURCES:"Seed Planted in SF State MBA Program Grows Into Mini-Filipino Food Empire," by Jamie Oppenheim (SF State News, 2022)."Inside Señor Sisig, the First Restaurant for a Pioneer of Filipino-American Cuisine," by Luke Tsai (Eater, 2019)."Tamales, L.A.’s Original Street Food," by Gustavo Arellano (Los Angeles Times, 2011). EXTRAS:"Why You Shouldn’t Open a Restaurant (Update)," by Freakonomics Radio (2019).