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If you’re looking for a great meatless, easy weeknight meal that comes together in just about 20 minutes, these Portobello Lettuce Cups are delightful! 

Portobello Mushroom Lettuce Cups

Recently, a lot of you have been requesting more plant-based/vegetarian recipes, which is something I haven’t done as much of in the past! However, I’ve also been trying to cut back a bit on eating meat (although let’s be clear, I very much still consume meat) and mushrooms have become one of my favorite ‘meaty’ veggies to cook with as a replacement! 

In this recipe, the portobello mushrooms soak up a delicious Asian-inspired sauce that is salty, slightly sweet, and a bit spicy. There is also an added crunch from the water chestnuts which I love, and then it is all served inside lettuce cups for a delightful meal or appetizer! Alternatively, you could also serve this over cauliflower rice for a meatless bowl option. No matter how you serve, you will love the flavor! 

And for more meatless options, be sure to check out this round-up

Portobello Mushroom Lettuce Cups
5 from 4 votes

Portobello Lettuce Cups

Total: 20 minutes
Servings: 4


  • ¼ cup coconut aminos
  • 1 teaspoon fish sauce
  • ½ teaspoon toasted sesame oil
  • 1 tablespoon rice vinegar
  • ½ teaspoon ginger powder
  • 2 teaspoons arrowroot or tapioca flour
  • 5 portobello mushroom caps , diced large
  • 3 tablespoons avocado oil
  • 1 large shallot diced small
  • 2 cloves garlic minced
  • 1 teaspoon kosher salt
  • 1 large fresno chile very thinly sliced
  • 1 [8-ounce] can water chestnuts, drained and loosely chopped
  • ¼ cup loosely chopped cilantro leaves
  • Butter lettuce for serving


  • In a small bowl, combine the coconut aminos, fish sauce, sesame oil, rice vinegar, ginger powder and arrowroot. Whisk until well combined and set aside.
  • Heat a large nonstick skillet over medium high heat with avocado oil. When the oil is hot, add the shallot and garlic. Cook, stirring, until the shallots are just tender, about 2 minutes.
  • Add the mushrooms, salt, fresno chile and water chestnuts. Cook, stirring occasionally, until the mushrooms are tender, 3 to 4 minutes.
  • Pour in the sauce and stir to combine. Allow the sauce to thicken, which should only take about 1 minute.
  • Remove from heat and stir in the cilantro.
  • Serve in lettuce cups and enjoy!

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Servings: 4

Welcome! I’m Alex.

I’m a food lover sharing healthy, simple, delicious, recipes from my kitchen to yours. Here you’ll find lots of Whole30, lots of healthy, and a little indulgence here and there because…it’s all about balance y’all!

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Recipe Rating


  1. 5 stars
    This turned out very yummy but my only issue was that the tapioca flour turned kinda gooey after I mixed it with the mushrooms. Is there anything I can do to fix it?

    1. I used arrowroot and the second I poured it into the mushroom mixture, mine turned extremely gooey as well!!

  2. 5 stars
    This dinner was FABULOUS. It was quick and refreshing. I added cauliflower rice. My boyfriend doesn’t eat vegan so I love when he also loves the dinner as much as I do. Thank you for the recipe 🙂

    1. 5 stars
      This recipe was so simple and quick yet packed with flavor! We will be adding this to a regular rotation of meals we make.

  3. 5 stars
    Oh…… my god? Made for a quick dinner with a side of (TJ’s microwaved) brown rice! I’m an 80% vegan and me and by 0% vegan boyfriend loved this! Definitely filling and impressive flavor with little effort! In the dinner rotation forever (reposted to make sure it got 5 stars!!!)