Stop everything you're doing right now. In honor of National Cheeseburger Day, burger chains are dishing out mad deals on their sandwiches. However, there's one deal that reigns supreme: Shake Shack is giving away free burgers today from 11 am to 2 pm. And better yet, they're delivering them. Here's everything you need to know about snagging a free (or at least a discounted) burger. 

How To Get a Free Shake Shack Burger

First, if you don't already have it, you'll need to download the food delivery app, DoorDash. Once you've chosen your burger and you're in checkout, type in the promo code "SHACK" and your free burger will be on its way. You'll only have to pay the tax, which is around 50 cents, and don't forget to tip your delivery person! 

#SpoonTip: DoorDash connects to Apple Pay, so if you're already set up with that, you won't even have to enter your card (because that's always so annoying.)

This deal is only available from 11 am to 2 pm local time in these 17 cities: Atlanta, Austin, Boston, Bridgewater (NJ), Brooklyn, Chicago, Dallas, DC, Houston, LA, Las Vegas, Long Island, Manhattan, Phoenix, Paramus (NJ), Queens, and Scottsdale (AZ).

If you've already meal prepped your Monday lunch, you can also get free delivery via DoorDash on Shake Shack orders over $12 until the end of the day as part of their #ShackWeek promotion. So, don't rule out burgers for dinner. 

Other #NationalCheeseburgerDay Deals

bacon, cheese, cheddar, beef, bun, onion
Caroline Ingalls

If you don't live near a Shake Shack, first, I'm sorry. Second, you can still get some good greasy deals. Although they might not be giving them away for free, these restaurants are getting in on the fun and discounting their cheeseburgers. 

Applebees: All burgers are $6.99.

Burgerfi: All burgers are $5 (one per customer). 

Fuddrucker's: If you can finish a 3 lb. burger and 1 lb. of fries, you get a t-shirt and a $20 gift card, and major props from me.

Sonic: Snag a classic cheeseburger and medium onion rings for $2.99.

I never thought I'd need a special day for celebrating a sandwich, but free burgers? I'm here for it. Hopefully you'll have time in your busy schedule to snag one of these deals. I know my free cheeseburger is already on its way.