Instant Pot Miso Quinoa With Mushrooms & Peppers

This easy Instant Pot miso quinoa with mushrooms and peppers is a healthy, tasty dinner meal. It’s gluten-free, vegetarian and vegan-friendly and is a protein-rich alternative to meat mains (although, you could also serve it as a side dish).

Quinoa is a fabulous, gluten-free pseudograin that is high in protein, fibre, minerals and vitamins. Instant Pot is fantastic for cooking quinoa and you can make a batch of it to use up in salads and other dishes, or you can make a one-pot dinner meal like this one. The ingredients and seasoning used in this dish make this a flavourful and nutritious meal.

This vegan and vegetarian-friendly quinoa dish is great for a weeknight dinner and weekend meal prep. If you like cooking with quinoa, try our pressure-cooker quinoa with broccoli and cheese or Mexican-inspired quinoa with cilantro dressing.


Tri-colour Quinoa

You can use any colour quinoa. It’s a good idea to choose fair-trade quinoa. Make sure to rinse it well through a sieve to get rid of any impurities or dust. Please note, that cooked quinoa will expand and double in size (if not more) but it should still have a little crunch to it. 


A combination of raw miso paste, tomato paste and Tamari or soy sauce, infuse this dish with real umami flavour, known as the fifth taste. It’s a little salty and savoury, tickling your tastebuds in all the right ways.

You can find raw miso paste in most health foods stores, Wholefoods and large supermarkets (usually in the refrigerated sections), but you can also use regular, pasteurised miso to get the right flavour. You can try this brand on Amazon.

Instant Pot Miso
You can use a variety of vegetables for this recipe, but we opted for mushrooms for their earthy flavour and red and green peppers for a little sweetness and all that Vitamin C.

Diced onions and mushrooms for Instant Pot

Once cooked, this Instant Pot quinoa dish can be served with a side of green salad or veggies.

If dairy is not a problem, you can transfer the cooked quinoa to a casserole dish and top it with grated cheese, then pop under a hot grill for 5-8 minutes for a truly comforting dinner.

Instant Pot Quinoa With Miso Mushrooms & Peppers
Instant Pot Quinoa With Miso, Mushrooms & Peppers


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Instant Pot Quinoa With Miso, Mushrooms & Peppers

  • Author: Instant Pot Eats
  • Prep Time: 15 mins
  • Cook Time: 15 mins
  • Total Time: 30 mins
  • Yield: 4 1x
  • Category: Main
  • Method: Instant Pot
  • Cuisine: American


This vegan and vegetarian-friendly Instant Pot quinoa dish is made with miso, mushrooms and peppers and is great for a weeknight dinner and weekend meal prep.


  • 1 + 1/2 cups uncooked quinoa (whatever colour your like)
  • 3 tablespoons olive oil
  • 1 medium onion, finely diced
  • 10 medium button mushrooms, diced
  • 1/2 long red chili, finely diced
  • A pinch of salt
  • 2 medium bell peppers (red and green), roughly sliced or diced
  • 2 cloves of garlic, grated or finely diced
  • 2 tablespoons raw brown miso paste
  • 1 tablespoon tomato paste
  • 2 tablespoons soy sauce or Tamari sauce (for gluten-free)
  • 2 tablespoons lemon juice
  • 1.5  cups vegetable stock
  • Fresh cilantro or parsley, to serve


  1. Soak quinoa in cold water and 1/2 teaspoon of salt for 15-20 minutes. Then rinse and strain through a sieve. Set aside.
  2. Turn on the Instant Pot and press the Sauté function key. Add olive oil to the inner pot, followed by chopped onions, mushrooms, chill and salt. Stir through and cook for 4-5 minutes, until softened.
  3. Add the quinoa and the rest of the ingredients and stir through. Press Keep Warm/Cancel to step the sautéing.
  4. Place the lid on top, lock and set to Manual, High Pressure, 5 minutes. You will hear three beeps, which means the pressure cooker is ready to start cooking. The whole cooking process will actually take a little longer as the pressure needs to build up first.
  5. Once the timer goes off, allow a few minutes for natural release. Use quick release to let out any remaining pressure and steam. Open the lid carefully.
  6. Stir the quinoa and taste for salt. Add a little more, if needed. We like to serve this dish with a side of vegetables or a salad.
  7. For a non-vegan version, you can transfer the quinoa into a casserole dish and top with grated cheese, then pop under the grill for 5-7 minutes.


  • Serving Size:
  • Calories: 384
  • Sugar: 5.7 g
  • Sodium: 514 mg
  • Fat: 14.8 g
  • Saturated Fat: 2 g
  • Carbohydrates: 53 g
  • Fiber: 7 g
  • Protein: 12 g
  • Cholesterol: 0 mg


Instant Pot Miso Quinoa With Vegetables
Instant Pot Recipes
By Instant Pot Eats

About Instant Pot Eats: Published by a seasoned food blogger and cookbook author, Irena Macri, and a team of cooking experts and enthusiasts, this blog is dedicated to delicious Instant Pot recipes. We love sharing all food including our favorite stovetop and oven dishes.

More about us here »


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  1. My local grocery store doesn’t have miso paste– do you have a substitute ingredient you could recommend to still have a good flavor at the end?

    1. Hey B, miso adds both saltiness and a little bit of sweetness but if you can’t find it, perhaps you can add some extra soy sauce and some nut butter like almond butter or even a little peanut butter, and a teaspoon or so of tomato paste.

  2. The flavor was delicious! However the quinoa was a bit hard. Any suggestions for a new instant pot user? should I just cook for longer next time?

  3. If I wanted to double the recipe, what changes would I have to make other than doubling the ingredients?

    1. You can double the recipe in your pot if it doesn’t reach max capacity, which is labeled on the side of the inner pot.

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