September means going back to school, getting ready for fall and important days like National Cheeseburger Day on Sept. 18. It's like National Burger Day, but with cheese added. 

Here's where you can get a special, free or discounted cheeseburger on Sept. 18. 

B.GOOD: Get the Power Play, Mushroom & Swiss or BBQ Bacon burger for free when you download the B.GOOD app from Sept. 16-22. 

Burger 21: The Super Cheesy burger is back for Sept. 18 only. 

BurgerFi: Buy a cheeseburger, get one for $1 on National Cheeseburger Day when you mention or show the offer. In-store only. 

Farmer Boys: Grab the Big Cheese burger for $2 from 2 p.m. to close on Sept. 18. Limit two per guest. 

Fuddruckers: If you're really committed to the holiday, prove your love of cheeseburgers at Fuddruckers in its 3-pound Burger Challenge. Finish a 3-pound burger and a pound of fries in under an hour and you'll win a T-shirt and a $20 gift card. Find the list of participating locations here.

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Attention all above average appetites! Win a $20 gift card and a commemorative shirt when you tackle our 3lb behemoth and a 1lb side of fries in under an hour. Details in the bio! #3lbBurgerChallenge #NationalCheeseburgerday #BeExtra . . . . . #fuddruckers #fuddsburgers #createyourcrave #eeeeeats #foodstagram #burgerholic #burger #cheeseburger #fries #hamburger #burgers #burgerporn #instaburger #burgerlovers #burgerlife #bestburger #fastfood #sweetpotatofries #chips #cheese #foodporn #foodgasm # #

A post shared by Fuddruckers (@fuddruckers) onSep 8, 2019 at 8:00am PDT


MOOYAH: Rewards app members get a free cheeseburger with the purchase of fries and a drink or shake on Sept. 18 at participating locations. Download the app by close on Sept. 18 to get the deal. 

Red Robin: Get unlimited steak fries when you purchase a drink and Gourmet Cheeseburger for $5 on Sept. 18. Dine-in only. 

More food news from GateHouse Media: 

Pizza Hut and Kellogg have teamed up for a ‘Stuffed Cheez-It Pizza’ IHOP is releasing an Addams Family-themed menu for Halloween Krispy Kreme is bringing back pumpkin spice doughnuts for one week