The article says in part:
After almost 30 years with the Encinitas Fire Department, firefighter John Gonzales began contemplating his upcoming retirement in 2015.
He thought it was time to shake things up in his life, and make a move, and this past July, he started Bottaro Wood Fired Pizza. Bottaro is the maiden name of his mother, an Italian-American.
In launching a business, Gonzales decided on a product that he loved himself and knew something about.
The business is Bottaro Wood-Fired Pizza, San Diego, California. The home page says in part:
Bottaro Wood Fired Pizza is an oven on wheels and as we like to call it "Pizza A-Go-Go". We also have salads and appetizers and cook all our food on site. You can find us at Street Fairs and Farmers Markets and also cater Private Parties and Events.
We use the freshest, local produce available, make our own sausage and use organic flour from Utah. Your pizza will bake in about 90 seconds in temperatures of 700 to 900 degrees. All your Family and Friends will appreciate the uniqueness of a Wood Burning Oven as we prepare and cook their food using "Old World" techniques right in your backyard or favorite setting.
This sounds like an interesting variation on the mobile oven business.