BBQ Portobello Bun Burger

Start BBQ season right with our BBQ Portobello Bun Burger recipe!

20 min. 2 serv.
40 ratings

Choose a sunny day to invite some friends over for a backyard BBQ and grill up our healthy BBQ Portobello Bun Burger recipe!

Portobello mushroom buns are a healthier alternative to regular hamburger buns.

If you are watching your carb intake, but don’t want to miss out on eating those juicy burgers, this low-carb recipe is for you! You no longer have to eat the patty without the bun!

Low Carbs icon Paleos icon


If you are following a certain protocol that does not allow for an ingredient that is listed below, please feel free to remove it from the recipe. If you need suggestions for substitutions, email us at
4 Portobello mushroom, Wiped clean with a damp cloth
1 Tbsp Grape seed oil
1 Tbsp Low sodium soy sauce
2 Garlic cloves, Minced
2 Tsp Dried Oregano
Sea salt & pepper, Pinch


17 Oz Extra lean ground beef
1 Egg
1 Tbsp Dijon mustard, or yellow mustard


Did you know?

Portobello Mushrooms are a good source of copper. Your body needs copper to produce red blood cells and carry oxygen throughout the body. These mushrooms also contain potassium, which helps maintain a normal heart rate and muscle and nerve function.

A tip for cleaning portobello mushrooms after removing the stem is to scrape off the gills with the tip of a spoon. This will ensure they don’t stain the cap or your hands, as they can give food an unappealing brown color.

Check out our other recipes that contain portobello mushrooms: Fajita-Stuffed Portobellos, and Portobello Chicken & Mushroom Pizza Recipe.

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