A new smash-burger stand with a 1950s diner twist has officially opened on Merrimack Street in downtown Lowell. On the Bun, started by husband-and-wife owners Hector Rodriguez and Mila Hernandez, held its formal grand opening and ribbon-cutting ceremony on September 29 at 120 Merrimack Street.
The event marked the public debut of the restaurant, which had originally been aiming to welcome guests in late June, according to a report from What Now Boston. That timeline shifted, and the ribbon-cutting ultimately landed roughly three months later than first planned, per openPR.com.
According to ABNewswire, the restaurant was established by Rodriguez alongside Hernandez, and the September 29 ceremony was framed as the business's formal opening. The address, 120 Merrimack Street, places the new burger spot squarely in the heart of downtown Lowell.
A Menu Built on Sliders, Shakes, and Fries
On the Bun's menu is centered on a tight lineup: smash-burger sliders, hand-cut fries, classic milkshakes, vegetarian options, and local draft beer, according to the restaurant's official website. The approach leans into simplicity rather than a sprawling menu, with the sliders and fries positioned as the core draw.
Shake lovers get four options to choose from: chocolate, strawberry, vanilla, and a mocha blend, per the same site. It's a short but classic lineup that fits the restaurant's retro framing.
Vintage Diner Energy Meets a Modern Build-Out
The concept behind On the Bun draws from classic American burger stands and 1950s diners, but the restaurant's own website describes the execution as taking a modern approach rather than a straight throwback. That blend of retro inspiration and contemporary menu design is central to how the business presents itself to new customers in Lowell.
With the ribbon officially cut and the grand opening behind it, On the Bun now joins downtown Lowell's restaurant scene with its smash sliders, fries, and shake counter fully up and running at 120 Merrimack Street.
