Dishing out burgers and fries slathered with melted cheese, "One Way Burger" is like any other trendy food truck in Riyadh. But it offers something rare -- the cook behind the sizzling hot grill is a Saudi. Blue-collar occupations such as cooking, cleaning and working at gas stations have largely been the preserve of foreign workers, but Saudis are increasingly taking on such "low status" jobs in a new age of austerity.