McDonald’s Drops the “Big Arch Burger” — And It’s Seriously Big

Some people argue you don’t get the same bang for your buck at McDonald’s anymore… but this might be a pretty massive exception.

McDonald’s is rolling out its brand-new Big Arch Burger, arriving at locations across the U.S. on Tuesday, March 3, 2026 — and it’ll only be available for a limited time.

Billed as the company’s “biggest and boldest burger yet,” the Big Arch doesn’t hold back. It stacks two quarter-pound beef patties with three slices of white cheddar cheese, topped with crispy onions, slivered raw onions, lettuce, and pickles.

It’s all brought together with the new Big Arch Sauce, described as a blend of mustard, pickle, and sweet tomato flavors, and served on a toasted bun coated in sesame and poppy seeds.

And “big” isn’t just about flavor — it’s about size, too. The Big Arch clocks in at 1,057 calories, more than three times the 303 calories in a classic McDonald’s cheeseburger and roughly double the 509 calories in a Big Mac.

As for the price, official details haven’t been released yet, but early estimates suggest it could cost $12 to $15 for a combo meal.

If you’re looking for something over-the-top, this might be McDonald’s biggest swing in a while.