There are  plenty of fast food restaurants and fast casual chains are celebrating National Cheeseburger Day with special discounts on cheeseburgers. Here’s the specials:

Applebees: Guests can pay $9 to score one of three burgers and a side of fries. The burger options include the classic bacon cheeseburger, classic cheeseburger and classic burger.

Buffalo Wild Wings: The wing spot isn’t chicken about tapping into the national food holiday with a buy-one-get-one-free burger deal. The offer is applicable to reward members and applies to menu items like the bacon mac and cheese burger, all-American cheeseburger and more.

Burger King: The home of the Whopper announced several days of deals. With a purchase of $1 or more, fans can get a free chicken sandwich on Sept. 17, free cheeseburger on Sept. 18, four-piece mozzarella fries on Sept. 19, free croissant breakfast sandwich on Sept. 20, free chicken fries on Sept. 21 and free soft drink on Sept. 22.

Dairy Queen: DQ is offering a free original cheeseburger signature stackburger with an app or online order of $1 or more from Sept. 16 to Sept. 22. The beef patties topped with sharp American cheese, pickles, ketchup and mustard, are only available at DQ Grill & Chill locations.

Denny’s: Rewards members can score 20% off any burger, including any of the restaurant’s limited-time choices like the Beetlejuice Beetlejuice-inspired option, the Beetlejuicy Burger.

McDonald’s: Big Macs might not be on sale, but McDonald’s is still treating fans to a discounted favorite. On Wednesday, Sept. 18, guests can get a 50-cent double cheeseburger when ordering on the McDonald’s app.

Red Robin: The deals are kicking off early at the fast food restaurant, as guests can get a gourmet cheeseburger with a bottomless side for $10 compared to the usual $15 or more price tag from Sept. 17 through Sept. 19.

Sonic: The drive-in joint is handing out their quarter-pounder double cheeseburger for $2 on Wednesday. Plus, on Sept. 17 — the day before National Cheeseburger Day — guests can get half-priced cheeseburgers after 5 p.m. as part of their weekly Tuesday deal.

Wendy’s: Stop by the chain restaurant for five days of cheeseburger deals. From Sept. 18 through Sept. 22, customers can snag a 1-cent Jr. Bacon Cheeseburger with any purchase. The digital offer will be available to people placing orders on the Wendy’s app.