This May Fuddruckers will feature two of its most popular burgers—the Southwest and the Swiss Melt—and bring back the Inferno Burger for the first time in five years.

Piled high with crisp toppings and served on its homemade, warm buns, baked fresh daily at all Fuddruckers restaurants, its three signature burgers are designed to provide guests with new options and a different twist to the classic hamburger for which Fuddruckers is famous.

Debuted in 2006 as a limited time offer, the Inferno Burger is specifically for those who can handle the heat and not for delicate taste buds. Extremely popular among those who prefer spicy fare, it features fresh jalapenos, caramelized onions and pepper jack cheese.

Meanwhile, both the Southwest and Swiss Melts have remained highly popular among longtime guests who custom order the specialty burgers, as neither appears on the standard menu in most Fuddruckers locations.

The Southwest debuted in 1998 when Fuddruckers first began serving guacamole, and is stacked with crisp bacon, pepper jack cheese and fresh guacamole. The Swiss Melt, formerly known as the Mushroom Swiss Burger, is topped with classic sautéed mushrooms, grilled onions and a thick slice of melted Swiss cheese.