San Diego. Contents of a carne asada burrito. San Diego style burritos include California and carne asada burritos. The style has been described as an austere meal of meat, cheese and salsa, in contrast to the Mission style burrito, which is typically larger and contains more ingredients. A significant subgenre of Mexican restaurants in San Diego serves burritos described as no frills in contrast to Mission style burritos, the assembly line is not used. In the early 1. 96. Roberto Robledo opened a tortilleria in San Diego and learned the restaurant business. Robledo began selling small bean burritos at La Lomita in the late 1. Robertos taco shop. By 1. 99. 9, Robertos had expanded to a chain of 6. Hoping to draw on the prestige of Robertos, new taco shops in San Diego began using the bertos suffix, with names such as Albertos, Filibertos, Hilbertos, among others. Contents of a California burrito. The California burrito originated at an unknown bertos named restaurant in San Diego in the 1. Another claimant of originator of the California burrito is the Fresh MXN chain formerly Santanas.