The new burger features a char-grilled beef patty, a house-made roasted French onion sauce, white American cheese, caramelized onions, two crispy-fried onion rings, lettuce, and tomato on a toasted sesame seed bun.
You can expect to cost around $5 or so, varying with location.
You can find it through November 2018 at participating The Habit locations.
Photo via The Habit Burger Grill.