Family OwnedGuy Fieri visits a Mexican restaurant and tortilla factory in San Diego where father and daughter work side-by-side. Next, a real-deal diner in Massachusetts, where father and son have been cranking out classic plates together for 20 years, then a legendary Chicago burger joint where folks are lining up for the char-burgers a couple of brothers are cranking out along with three-layer fries.Foods featured: El Indio3695 India St.San Diego, CA 92103619-299-0333www.el-indio.comCharlie's Diner5 Meadow StreetSpencer, MA 01562508-885-4033www.charliesdiner.comParadise Pup1724 S. River...