SeasonalWhile supplies last
Sonic Drive-In · Smoked Gouda and Bacon Sonic Smasher
A burger made with hand-smashed Angus patties topped with smoked gouda, crispy bacon, and black pepper aioli, available in double or triple versions.
Limited-time offerWhile supplies last
Prime Rib Stack Burger at Red Robin — launch date and LTO window
A burger with a hand-pressed beef patty topped with sliced prime rib, Monterey Jack cheese, caramelized onions, and garlic aioli, on a black-and-white sesame seed brioche bun, served with a bottomless side.
Key data
Red Robin launched the Prime Rib Stack Burger, announced October 14, 2026, available from October 19, 2026. It is a limited-time offer in the burgers category, available nationwide. This record is backed by 4 sources and 4 independent outlets.
The facts
Sources
Every published launch carries at least one source with a quote from the original announcement.
- Primary sourceOctober 14, 2026
“Starting Oct. 19, Red Robin's new Prime Rib Stack Burger will be available for a limited time at participating locations nationwide.”
prnewswire.com ↗ - Consumer mediaOctober 16, 2026
“Starting October 19th, Red Robin is introducing a Prime Rib Stack Burger, which is exactly what it sounds like: a burger topped with more beef.”
sporked.com ↗ - Consumer mediaOctober 15, 2026
“Red Robin will launch its new, limited-time Prime Rib Stack Burger on October 19, 2026, along with two returning value-menu burgers”
brandeating.com ↗ - Trade mediaOctober 14, 2026
“Red Robin Gourmet Burgers, Inc. is introducing the new, limited-time Prime Rib Stack Burger, a meat-on-meat masterpiece for guests looking for a premium burger experience.”
fsrmagazine.com ↗
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