It’s not a good day to amend your carnivorous habits.

National cheeseburger day, a made-up holiday that celebrates that most American of foods, is here—and whether you, like Jimmy Buffett, prefer them with lettuce and tomato, Heinz 57 and french fried potatoes or just want it plain, you’ll have lots of choices for a free or discounted lunch or dinner today.

National Cheeseburger Day falls on Sept. 18 every year. And while it carries the same validity as National French Fry day (July 13) or National Chocolate Chip Cookie day (Aug. 4), it's still a good excuse to scarf down some comfort food.

Looking for the best place to save money and ignore the diet when lunch or dinner time rolls around? There are plenty of deals to be found:

McDonald's

Download the McDonald’s app and you can get double cheeseburgers for just 50 cents today only.

Burger King

You’ll need to be a member of the Royal Perks reward program, but once you sign up, you can get a free cheeseburger with any purchase of $1 or more today.

Wendy’s

Like its competitors, you’ll need to use the Wendy’s app to get this year’s deal, but logging on can get you a Jr. Bacon Cheeseburger for just one cent with any purchase today through Sunday.

Dairy Queen

Order one dollar’s worth of food via the chain’s app or online and you’ll get a free double Original Cheeseburger Signature Stackburger.

Applebee’s

There’s no app necessary for the chain’s “classic burger deal” today, which will get you any burger on the menu, along with fries for $8.99.

Buffalo Wild Wings

If you’re a member of the Blazin’ Rewards program, you get buy-on-get-one-free cheeseburgers on Wednesday, regardless of which style you choose. (You’ll also get 10 free boneless wings if you spend $15 or more.)

Krystal

You can grab a dozen Krystal sliders for just $12 or 12 Cheese Krystal sliders for $15 for a limited time.

BurgerFi

Get a BurgerFi Cheeseburger for $4 when you buy a Coca-Cola Freestyle Beverage.

This story was originally featured on Fortune.com