What Fast Food Restaurant Has the Best Keto Burger? Our 5 Chain Burgers Taste Test!

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More Keto Fast Food

Trying to find the best keto fast food burger? We ranked 5 of the most popular options!

keto burgers lined up in front of bags on counter

Where’s the (best) beef?!

Sometimes you just want a juicy hamburger when you’re out and about, and having fast food on the go makes it easy. We decided to conduct our own official taste test to find out which fast food burgers are a hit and which ones aren’t making the cut.

For this taste test, we tried keto fast food burgers from five popular burger chains – Five Guys, McDonald’s, Burger King, Wendy’s, and Freddy’s Steakburgers. We went with the true basics by ordering a single hamburger patty with American cheese — that’s it. No condiments or veggies so we could get an idea of who truly has the best-tasting beef patty.

woman standing over a counter with keto burgers from different fast food restaurants

From best to worst, here’s our ranking of the best keto fast food burgers:

(Note, pricing may vary by region)

1. McDonald’s Quarter Pounder was, surprisingly, a favorite. 

McDonald's quarter pounder

Quarter Pounder – $4.40

Nutrition Info: 320 Calories | 24g Fat | 4g Total Carbs | 1g Fiber | 1g Sugar | 24g Protein | 3g Net Carbs

My Hip teammate, Jen, tried McDonald’s Quarter Pounder and was surprised by how good it actually was!

Here’s what she said about it:

“McDonald’s was the clear winner. This surprised me as I thought it would be last. The burger was thick, savory, and very juicy. This would work as a great meal for me. It was also the least expensive one to buy.” – Jen

It’s worth noting that another Hip taste tester, Cam, tried original (and very inexpensive) McDonald’s cheeseburger and was not a fan, but said the Quarter Pounder was delicious. It’s worth it to pay a couple of extra bucks for the juicier patty!

Collin also loves the McDonald’s Quarter Pounders! Check out her Instagram post –

McDonald’s has plenty of other yummy keto options. Check out them all in our McDonald’s Keto Dining Guide

2. While the most expensive, Five Guys has one of the BEST keto fast food burgers around!

holding a Five Guys keto burger with no bun

Cheeseburger – $9.29

Nutrition Info: 372 Calories | 23g Fat | 1g Total Carbs | 0g Fiber | <1g Sugar | 20g Protein | <1g Net Carbs

If you’re lucky enough to have a Five Guys location near you, you’ve got to stop in and get a burger! They have a ton of different toppings to choose from & make it so easy to customize them to your liking.

The downside is that Five Guys is also the priciest option on the list at $9.29 for a cheeseburger. Still, that’s not gonna stop it from being a solid choice when we want a juicy, cheesy, top-tier keto lunch. 🤤

Five Guys Keto Burger Patty

It is worth noting, however, that while Cam said Five Guys’ burger is her favorite, Jen found it to be pretty disappointing as her patty came out a little burnt and dry. It’s possible they were having an off day as a few other Hip2Keto members are big fans of their burgers, but it shows that it’s good to shop around and find the keto burger that tastes best to you!

Check out our Five Guys Keto Dining Guide to see the full list of items you can order!

3. Freddy’s Steakburgers & Frozen Custard has tons of tasty burger options.

bunless cheeseburger from Freddy's

Single Steakburger with Cheese – $5.28

Nutrition Info: 280 Calories | 19g Fat | 3g Total Carbs | 0g Fiber | 1g Sugar | 24g Protein | 3g Net Carbs

If you’ve always wanted to try In-N-Out’s famous burgers but don’t live on the west coast, we think Freddy’s tastes pretty similar–if not even better, in our opinion. 😍

While they weren’t necessarily the beefiest on the list, they were perfectly seasoned and still pretty filling. We also love Freddy’s because they actually have lettuce-wrapped nutrition info that’s so easy to read for keto folks! As we were ranking this list solely based on the quality of the burger, we didn’t opt for the lettuce this time, but it’s such a tasty & easy-to-order option if you have Freddy’s locations nearby!

If you don’t, Jen tried Whataburger and said it was pretty tasty, so that may be a good alternative.

Check out our full Freddy’s Steakburgers & Frozen Custard keto dining guide to find their many low-carb options.

4. Despite being in 4th place, we’d definitely stop by Burger King again!

holding a bunless burger in front of Burger King bag

Whopper with Cheese – $4.99

Nutrition Info: 320 calories | 24g Fat | 1g Total Carbs | 0g Fiber | 1g Sugar | 24g Protein | 1g Net Carbs

While Burger King’s keto burger wasn’t quite tasty enough to earn the top spot, it certainly deserves a mention! The burger is thick, juicy, and perfectly filling by itself. Burger King doesn’t have a ton of options in the sides department, but their garden salad (minus the croutons) is a safe and tasty bet if you want something a little extra.

And at less than $5 for a single cheeseburger, Burger King is pretty cheap for being such a tasty choice while on the go. 😋

See our complete Burger King Keto Dining Guide for more low-carb goodness!

5. Wendy’s burger wasn’t bad, but it also wasn’t as tasty as the others.  

wendy's keto cheeseburger in front of bag

Dave’s Single – $3.79

Nutrition Info: 380 calories | 32g Fat | 6g Total Carbs | 1g Fiber | 3g Sugar | 25g Protein | 5g Net Carbs

Please note that nutrition info includes lettuce, tomato, pickle, ketchup, mayo, and onion. Remove those toppings to save a few carbs. 

Wendy’s cheeseburger isn’t the worst burger we’ve had by a long shot, but it doesn’t hold a candle to the scrumptiousness of the other ones on the list. The burger patty was too dry without enough cheese to offset it. The seasoning was also pretty “meh” & the thickness of the burger leaves a little to be desired.

If you were looking for the quickest burger option and had to choose between Wendy’s and Burger King, we’d recommend BK all the way. 🙌

If you’re not into Wendy’s burgers, you can see all of their other keto options in our Wendy’s Keto Dining Guide

keto burgers on counter

While we chose this list for our best keto fast food burgers taste test from some of the most frequented restaurants, we get it’s not a comprehensive ranking of all the beef-fueled deliciousness out there. It’s always a good idea to call local restaurants & explore your options when trying to find your personal fave keto burger to eat on the go!

Do you have a favorite from the list or perhaps from a place not mentioned? Let us know in the comments!

Love easy ordering? Check out the rest of our keto dining guides!

About the writer:

Brandi has an Associate's Degree and 5+ years of experience writing and creating online content for local businesses.

Join The Discussion

Comments 5

  1. H

    If you live near Whataburger, they can serve the burger without the bun. They package it in the pancake container. It was tasty and they put the mayo/mustard on the side. It’s easy to customize in the app.

    • Jennifer (Hip Sidekick)

      Thank you so much for your helpful tip! I’m a huge fan of Whataburger!

  2. J

    Wow, I hate to see all that packaging waste. A big huge plastic container just for a single little beef patty and cheese? Terrible for the environment. Couldn’t you ask them to please put your bunless burger wrapped inside a paper wrapper instead?

    • Amber (Hip Sidekick)

      Thanks so much for the suggestion, J! You can always ask your location to see if they can do that for you.❤️

  3. kctexas

    🙄 wow

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