Low Carb Mushroom Burger

Low Carb Mushroom Burger

There’s nothing better than a juicy cheeseburger…or is there? What about a juicy low-carb cheeseburger on a perfectly baked portobello mushroom with crisp lettuce, tomato and grilled onions? I’ll let you be the judge of that.

Low Carb Mushroom Burger

Chirpy has been M.I.A. for a few days, because we’ve been in New York City seeing the sights and getting a taste of the quirky restaurants and street food. It was a very ambitious trip: We left North Carolina on Friday morning at 5am and arrived at Cody’s cousin’s apartment in Queens at 7:30pm. It was the longest car ride I’ve ever taken. We got stuck in traffic in every major city we drove through, and when we FINALLY arrived in New York, we spent about an hour circling a block to find a parking space ????.

For the next two days we did the tourist thing and had lots of fun, but by Sunday night our legs and feet were so bashed up that we skipped a few things on our to-do list to ensure we could have a good night’s rest before our long trip back on Monday.

After 4 days of gas station food and indulgent New York street food, I was more than ready to get back into the low-carb swing of things. This low-carb mushroom burger to be more specific.

Low Carb Mushroom Burger

Hamburgers are one of my weaknesses, so naturally I had to figure out a way to get my fix while still being healthy.

I’ve seen many mushroom-as-a-bun burgers on pinterest, but what finally made me take the plunge is when Zellie told me about an amazing mushroom burger our aunt Deidré made. I couldn’t resist trying it out for myself and putting my own spin on it, and this is the result. We served it with our Paprika Sweet Potato Fries that we cut skinnier, unlike the original recipe.

The beauty of a meal like this is that you can modify it to your heart’s content and make it your own. Happy cooking!

Low Carb Mushroom Burger

A delicious healthy portabella burger. All the flavor of a burger and non of the carbs. Only needs 4 simple ingredients for the burger and 5 for the toppings. 30 Minutes from start to finish! Low-Carb. Gluten-Free. Keto. Paleo. Whole 30.
5 from 1 vote
Print Pin Rate
Course: Main Course
Cuisine: American
Prep Time: 10 minutes
Cook Time: 20 minutes
Total Time: 30 minutes
Servings: 4
Calories: 431kcal


For The Burger:

  • 1 lb ground beef (500g)
  • 1 tsp salt
  • 1 tsp mexican chili powder
  • 1 tsp ground coriander

For The Rest:

  • 4 portobello mushrooms (stems removed and gills scraped out)
  • 4 slices pepper jack cheese (or cheese of choice)
  • 4 slices tomato
  • 4 lettuce leafs
  • 1 onion (sliced)


  • Preheat oven 350ºF/180ºC.
  • Drizzle olive oil over the mushrooms and season generously with salt and pepper.
  • Sauté the onions in a little bit of oil and a knob of butter over a medium heat. Season lightly with salt and pepper. Keep it cooking while you continue with the rest of the steps. Stir occasionally.
  • While the mushrooms bake and onions caramelize, mix together the ground beef, salt, dried chili and coriander and mold into 4 patties.
  • Cook the patties for approximately 2 minutes on each side over a high heat.
  • While the patties are still in the pan, put a slice of cheese on each patty and allow to melt. You can also put a lid on the pan for about 30 second to speed things up.
  • Once the mushrooms are done, everything else should be ready as well. All you need to do is to assemble the burgers:
    1. start with a mushroom,
    2. add lettuce and tomato,
    3. slide on the burger
    4. and lastly, top with the carmelized onions.
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Tips and Tricks:
1. We like to serve these burgers with our Paprika Sweet Potato Fries on the side.
2. We also like to put a generous dollop of our delicious Simple Homemade Mayonnaise


Calories: 431kcal | Carbohydrates: 8g | Protein: 29g | Fat: 32g | Saturated Fat: 14g | Cholesterol: 105mg | Sodium: 829mg | Potassium: 763mg | Fiber: 2g | Sugar: 4g | Vitamin A: 681IU | Vitamin C: 6mg | Calcium: 244mg | Iron: 3mg
Tried this recipe?Mention @LivingChirpy or tag #livingchirpy!

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1 thought on “Low Carb Mushroom Burger”

  1. 5 stars
    I love this sooo much! Honestly, the bun adds nothing to the flavor of a burger – when you eat this it feels like you ate a proper burger. Delicious!

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