Savour the Flavours of our Delectable Keto Vegan Portobello Steak with Creamy Avocado Chimichurri: Recipe and Guide

Discover the Richness of Keto Vegan Portobello Steak with Avocado Chimichurri

Embark on a culinary journey that will tantalize your taste buds and align perfectly with your keto lifestyle. The Keto Vegan Portobello Steak with Avocado Chimichurri is not just a meal; it’s an experience. This recipe is a testament to the versatility and richness that can be achieved within the boundaries of a keto vegan diet. Packed with bold flavors and satisfying textures, it’s the perfect dish for anyone looking to indulge in a guilt-free, steak-like experience.

As a keto enthusiast, you understand the importance of keeping your carb count low while ensuring adequate fat intake. This dish strikes that balance beautifully, with the meaty portobello mushrooms serving as a substantial base, and the avocado chimichurri providing a creamy, fatty, and flavorful topping. It’s a combination that not only meets your dietary needs but also exceeds your culinary expectations.

Keto Vegan Portobello Steak with Avocado Chimichurri

The Story Behind the Steak

The inspiration for this Keto Vegan Portobello Steak with Avocado Chimichurri stems from a desire to create a plant-based dish that could stand toe-to-toe with any traditional steak. The key to its success lies in the selection of ingredients that are not only keto-friendly but also bursting with flavor and nutritional benefits.

Portobello mushrooms are the stars of the show, with their meaty texture and ability to absorb flavors making them an ideal substitute for steak. When marinated and grilled, they develop a depth of flavor that is truly steak-like. Pairing these with a homemade avocado chimichurri, rich in healthy fats from olive oil and avocado, not only complements the umami of the mushrooms but also introduces a vibrant freshness to the dish.

The marinade ingredients, such as coconut aminos and apple cider vinegar, bring a subtle sweetness and tang that enhance the natural flavors of the mushrooms. The smoked paprika adds a hint of smokiness, reminiscent of a traditional steakhouse experience. For those on a keto diet, these ingredients are perfect as they add layers of flavor without adding unnecessary carbs.

Avocado, a keto staple, is not only rich in monounsaturated fats but also provides fiber and essential vitamins. When combined with herbs like parsley and cilantro, the chimichurri becomes a powerhouse of antioxidants and nutrients, making this dish as healthy as it is delicious.

Preparing Keto Vegan Portobello Steak

Mastering the Method

Creating the perfect Keto Vegan Portobello Steak with Avocado Chimichurri is all about technique. Start by **whisking together** your marinade ingredients until well combined. This not only ensures each mushroom steak will be evenly flavored but also allows the flavors to meld together before being absorbed by the mushrooms.

When marinating the portobello mushrooms, make sure to **coat each one thoroughly** and allow them to sit for at least 10 minutes. This is crucial for the mushrooms to soak up all the delicious flavors. If you have time, letting them marinate for up to an hour will intensify the taste even more.

While grilling, keep an eye on your mushroom steaks. They should be **grilled to perfection**, with nice char marks and a tender texture. Basting them with the leftover marinade will add an extra layer of flavor and prevent them from drying out. Letting them rest after grilling is just as important as it allows the juices to redistribute, ensuring a moist and flavorful steak.

The avocado chimichurri should be **gently mixed** to maintain the avocado’s texture. Overmixing can turn your chimichurri into a paste, so a light hand is key. Preparing the chimichurri ahead of time allows the flavors to develop and meld, creating a more cohesive and robust sauce.

Keto Vegan Portobello Steak Served

Variations to Spice Up Your Steak

Spicy Portobello Steak with Jalapeño Chimichurri

For those who enjoy a bit of heat, consider adding finely diced jalapeños to your chimichurri. The spicy kick will elevate the flavors and add an exciting twist to the dish. Ensure to deseed the jalapeños if you prefer a milder heat level.

Herbed Portobello Steak

Introduce a variety of fresh herbs like thyme, rosemary, and oregano into your marinade for an aromatic take on the classic recipe. These herbs not only infuse the mushrooms with a garden-fresh flavor but also provide additional health benefits.

Citrusy Avocado Chimichurri

Add a zesty flair by incorporating lemon or lime zest and a squeeze of fresh juice into your chimichurri. The citrus notes will cut through the richness and add a refreshing brightness to the dish.

Substitutions for Every Keto Kitchen

While the original recipe is designed to be keto-friendly, there may be times when you need to make a substitution. Here are some options to keep your meal on track:

Coconut Aminos Substitute

If you don’t have coconut aminos on hand, tamari is a great gluten-free, low-carb alternative that still provides that umami depth.

Red Wine Vinegar Swap

Apple cider vinegar can be used in place of red wine vinegar in the chimichurri, offering a similar tang with added health benefits.

Alternative Oils

Avocado oil is a fantastic substitute for olive oil, maintaining the high-fat content necessary for keto while providing a neutral flavor profile.

Frequently Asked Questions

Can I make this dish ahead of time?
Absolutely! The portobello steaks can be marinated overnight, and the chimichurri can be prepared a day in advance. Just be sure to store them properly in the refrigerator.

Is this dish freezer-friendly?
While you can freeze the marinated mushrooms, it’s best to enjoy the chimichurri fresh to maintain the best texture and flavor.

Can I use other types of mushrooms?
Yes, you can use other large mushroom varieties, but portobellos are preferred for their size and meaty texture.

What can I serve with this dish?
A side of keto-friendly cauliflower mash or a fresh green salad would complement the dish nicely.

How do I store leftovers?
Leftover steaks and chimichurri can be stored in separate airtight containers in the refrigerator for up to 3 days.

Keto Vegan Portobello Steak with Avocado Chimichurri

Indulge in the hearty flavors of our Keto Vegan Portobello Steak, perfectly paired with a zesty Avocado Chimichurri. This dish brings a symphony of textures and tastes to your plate, all while keeping your macros in check. It's a plant-based masterpiece that's sure to satisfy your steak cravings without compromising your keto lifestyle.
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Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Course Dinner
Cuisine Keto, Vegan
Servings 4 servings
Calories 290 kcal


  • Grill pan or skillet
  • Small bowl for marinade
  • Shallow dish for marinating mushrooms
  • Medium bowl for chimichurri
  • Measuring spoons and cups
  • Knife and cutting board


  • 4 large portobello mushrooms approx. 1 lb or 450g, stems removed
  • 2 tbsp olive oil 30ml
  • 2 tbsp coconut aminos 30ml
  • 1 tbsp apple cider vinegar 15ml
  • 2 cloves garlic minced, approx. 2 teaspoons or 10g
  • 1 tsp smoked paprika 5g
  • ½ tsp ground black pepper 2.5g
  • ½ tsp sea salt 2.5g
  • 1 ripe avocado pitted and diced
  • ½ cup fresh parsley finely chopped, 30g
  • ¼ cup fresh cilantro finely chopped, 15g
  • 2 tbsp red wine vinegar 30ml
  • 4 tbsp olive oil 60ml
  • 2 cloves garlic minced
  • ½ tsp chili flakes 2.5g
  • ½ tsp sea salt 2.5g
  • ¼ tsp ground black pepper 1.25g


  • In a small bowl, whisk together olive oil, coconut aminos, apple cider vinegar, minced garlic, smoked paprika, black pepper, and sea salt to create the marinade.
  • Place the portobello mushrooms in a shallow dish and pour the marinade over them. Ensure each mushroom is well-coated. Let them marinate for at least 10 minutes, flipping halfway through.
  • While the mushrooms marinate, prepare the avocado chimichurri. In a bowl, combine the diced avocado, chopped parsley, cilantro, red wine vinegar, olive oil, minced garlic, chili flakes, sea salt, and black pepper. Stir gently to mix. Set aside.
  • Heat a grill pan or skillet over medium-high heat. Once hot, place the marinated portobello mushrooms on the grill, reserving the excess marinade for basting.
  • Grill the mushrooms for 5-7 minutes on each side, basting with the remaining marinade as they cook. They should be tender and have grill marks.
  • Once cooked, remove the portobello steaks from the heat and let them rest for a couple of minutes.
  • Serve the portobello steaks topped with a generous spoonful of avocado chimichurri.


If you don't have coconut aminos, you can substitute with low sodium soy sauce, but this will alter the nutritional content slightly. For the best flavor, let the portobello mushrooms marinate for up to an hour if time allows. The avocado chimichurri can be made ahead of time and stored in the refrigerator for up to 2 days. Enjoy your Keto Vegan Portobello Steak with fresh, vibrant flavors and the perfect keto-friendly profile!


Calories: 290kcalCarbohydrates: 12gProtein: 5gFat: 25gFiber: 5gNet Carbs: 7g
Keyword Avocado Chimichurri, Keto, Low-Carb, Portobello Steak, Vegan
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