Bunless Portobello Burger Recipe

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Bunless Portobello Burger Recipe

July 2, 2017 Food And Drink Recipes 0
Bunless Portobello Burger

This bunless Portobello burger is a must try if you are a bugger addict. It tastes great even without a big bun of empty carbs or a big slab of meat. It is a really filling burger that you can prepare and eat any time of the day. You will not need to eat anything else after eating it because it is enough to satisfy your hunger. You can use it around ground chicken, ground beef, ground turkey or even a combination of the three if you like. As long as you use the right marinades and seasonings when preparing it, you will have a flavor that is even better compared to what you are used to at your favorite burger joint.

Bunless Portobello Burger Recipe

Bunless Portobello Burger

image credit: foodmatters.com

  • Cooking Time: 45 minutes
  • Servings: 1- 2


  • 2 Portobello mushrooms
  • 1 to 2 teaspoons of olive oil
  • A pinch of mixed herbs
  • A pinch of sea salt
  • 1 teaspoon of sesame seeds
  • Rocket (arugula), or baby spinach
  • 1/4 pumpkin
  • 1 tomato (sliced)
  • 1 tablespoon of coconut oil
  • 1/2 tablespoon of honey


  • 1 avocado
  • 1 crushed garlic clove
  • Juice of 1 lime
  • A pinch of sea salt
  • A pinch of paprika

How to Prepare:

  1. First of all, you will need to preheat your oven to 355 degrees Fahrenheit or 180 degrees Celsius.
  2. After that, take the pumpkin and slice it into pieces that are slightly the same size as the Portobello burns as they are going to be the patty. Spread the pumpkin pieces evenly on a lined baking tray and then coat them with honey and coconut oil. Put them in a toaster oven and allow them to roast for about 30 to 40 minutes or until they well cooked and have turned golden brown.
  3. Next, you will need to drizzle the Portobello mushrooms with a pinch of salt and olive oil and then sprinkle with sesame seeds. Put the mushrooms on a lined tray and then bake them in the oven for about ten to fifteen minutes.
  4. As the pumpkin and mushrooms continue roasting in the oven, start getting your guacamole ready. You will simply need to combine the avocado, garlic, lime, paprika and sea salt in a large bowl and then mix then together until they are combined well.
  5. After that, you will need to take your burgers and assemble them by putting one mushroom on the plate and then top with the roasted pumpkin, sliced tomato, guacamole and leafy greens. Finish by topping with the other mushrooms.

NB: Preparation of Mushrooms

Before using the mushrooms, remove the stems from them and then use a spoon to scrape the grills from the bottom. By doing that, the burger and toppings will have a nice bed to nestle into.

You can get as creative as you want when preparing the bunless Portobello burger. For instance, if you do not like pumpkin, you can skip it and go with grass-fed beefy party. You can also go with bacon and cheese if you do not love the mushroom and bun idea. Sweet potatoes and yams can also be a great alternative for pumpkin. The end result will be a yummy burger that everyone in your family will love.

You can use different seasonings depending on what you are pairing your burger with. Some of the staples that you might want to try include garlic powder, Worcestershire sauce, steak seasoning, red pepper, onion powder, black pepper and salt. There is no need of using all of these seasonings at once. You can just choose a select few that taste great in your case.


Since it takes only 45 minutes to prepare this bunless portobello burger recipe, it is something that you can try any day of the week. If you do not have a big oven, you do not need to worry because a toaster oven can prepare the burger just fine. You can use this recipe for your next BBQ – that is if you usually hold BBQ parties and are planning to have one soon. I can guarantee you that your friends and family will not be disappointed when you serve them this burger. It is delicious. The mushrooms are very tender and have a nice crispy sear that will make you want to eat more and more burgers. Some bread to go with it would be nice.