The first I.E. Food Truck Fest gathered 57 trucks showcasing the phenomenon that has latched on to the food world in recent years.

These aren't your father's roach coaches. Spread out across the arena's parking lot were vehicles serving up everything from Chinese tamales to Mexi-terranean kabobs.

"Back in the 80s ... I work in L.A., and we'd always say, `Let's eat at a roach coach,' " said Rudy Chairez of Rancho Cucamonga, who brought his two sons to celebrate Father's Day. "But now it's gourmet. It's not the roach coach we knew back

Martin Tse takes an order at the Dogzilla truck Saturday at the I.E. Food Truck Fest at Citizens Business Bank Arena in Ontario. (Thomas R. Cordova/Staff Photographer)
in the day."

Chairez sunk his teeth into a pepperpatty melt from the Grilled Cheese Truck, which boasted the longest line of the day. Chairez's sandwich was a mess with habanero jack cheese, chili, Fritos, salsa and sour cream spilling out.

The Chairez family was an efficient team, taking turns standing in lines and then meeting up again to share their purchases.

Emilio Chairez, 16, came back with a lobster slider, and Rudy Chairez Jr. showed off his pastrami sandwich with french fries poking out.

"That's a man sandwich right there," said Rudy Chairez Jr. "Oh...Mylanta."