Los Angeles’ favorite burger chain is taking over the Vegas Strip.

In-N-Out Burger’s flagship restaurant on the Las Vegas Strip opens today, marking a major milestone for the iconic Southern California-based chain.

“It’s officially official,” the company announced in a post on X Tuesday. “In-N-Out’s new flagship Las Vegas location will open tomorrow, with over 8,000 square feet on one level and beautiful views of the Strip.”

The new restaurant is likely to become one of the most visited In-N-Out locations in the company’s history, given its spot in the heart of the Las Vegas tourist corridor, adjacent to the MGM Grand Hotel and Casino.

News of the flagship In-N-Out Burger, located at 3747 S. Las Vegas Blvd., has been in the company’s “opening soon” section of its website since earlier this year.

The family-owned business has operated restaurants throughout Las Vegas for years, but its latest opening represents a significant expansion of the brand’s presence as one of the country’s fastest-growing burger chains.

While California remains In-N-Out’s largest market by far, the chain has steadily expanded eastward over the past decade, opening stores in states including Colorado, Texas and Tennessee.

When CEO Lynsi Snyder announced the company’s expansion into Tennessee in 2023, she hinted that other states near its distribution hub in Lancaster, Texas, would be coming soon.

Snyder also announced last year that In-N-Out’s corporate office in Irvine will close by 2030, with all operations shifting back to the company’s roots at a home office in Baldwin Park, where her grandparents founded the chain in 1948.

In-N-Out has since grown from a small Southern California hamburger stand into a favorite known for its simple, affordable menu of burgers, fries and milkshakes.

It’s unclear whether any festivities are planned for the new Vegas opening, but burger lovers should expect long lines to order their Double-Double, animal-style fries or Snyder’s go-to order: a double meat with fried mustard, extra spread, pickles and chopped chilis.