A new Tacos El Pariente food truck rolls into Derwood this Monday, parking itself at a Marathon gas station on Frederick Road for a grand opening that runs from 11 a.m. to 9 p.m. with coupons for free dishes up for grabs. The truck lands at 15805 Frederick Road, marking the brand's third Montgomery County truck and its latest bet on gas station real estate along a busy Montgomery County commuter corridor.
The grand opening details come from The MoCo Show, which reports that the celebration will include coupons for free dishes, according to the restaurant. Tacos El Pariente built its reputation on birria tacos served with consommé, along with tortas, burritos, enchiladas, esquites and other Mexican street-style dishes, per the same outlet.
From One Truck to a Multi-County Fleet
The Derwood opening is the newest step in a growth pattern that began years earlier. Tacos El Pariente's original truck sits in Germantown at 20220 Frederick Road, and the company expanded to a second gas-station lot in Olney, at 18000 Georgia Avenue, when it opened there on February 13, 2023, according to an earlier report from The MoCo Show.
Later that year, the business put down permanent roots, opening its first brick-and-mortar restaurant at 7889 Cessna Avenue in Gaithersburg on September 21, 2023, in a space previously occupied by Daytime Eats, the station's reporting shows. That storefront gave the mobile operation a fixed commercial kitchen before the brand pushed further outward. The expansion continued on January 2, 2026, when Tacos El Pariente opened its fourth mobile location overall and its first unit outside Montgomery County, a truck at 5498 Buckeystown Pike in Frederick, Maryland, the outlet reported at the time.
Navigating Permits Across County Lines
Running trucks in both Montgomery and Frederick counties means clearing more than one regulatory hurdle. Montgomery County requires mobile food service units to pass health inspections through Public Health Services in Wheaton, obtain a vendor permit from the Department of Permitting Services, and maintain an approved brick-and-mortar base of operations, according to Montgomery County's MC311 service.
Crossing into Frederick County legally hinges on a separate state mechanism. Under Maryland public health regulations, a licensed mobile food unit can obtain a Mobile Reciprocity License to sell food in neighboring counties located within 90 miles of its home county, according to a guide published by Otter. Federal filings add another layer of detail to the operation: Tacos El Pariente II Inc. is listed in Federal Motor Carrier Safety Administration records, per MoveCars.com.
A Crowded, Growing Market for Tacos
Tacos El Pariente isn't operating in a vacuum. Montgomery County's Hispanic population grew to 20% of the county's total residents, more than 217,000 people, in the 2020 Census, making it the county's largest minority demographic, according to data from the Montgomery County Planning Department.
The brand has also earned outside recognition. Visit Montgomery featured Tacos El Pariente in its official tourism guide, “The Ultimate Taco Road Trip,” spotlighting its birria tacos with consommé, gorditas and traditional street dishes, according to Visit Montgomery.
Derwood Opening Scheduled for Monday
Popular gas-station taco trucks tend to draw crowds. Tacos El Pariente's Derwood location is scheduled to open Monday, October 5.
