Owner Brandon Alarcon opened Donut 911, 310 N. Guadalupe St., San Marcos, on June 13. The food truck sells a variety of sweet and savory doughnuts. The truck's menu includes a Philly cheesesteak doughnut, a coffee and Kahlua doughnut, and a peanut butter chocolate doughnut, among others. Alarcon said he plans to add more breakfast items, such as omelets, to his menu. 817-915-6379