Sauteed Mushrooms and Onions

Sauteed mushrooms and onions in a pan

If you need a fast and easy side dish to complement any meal (don’t we all?) sauteed mushrooms and onions are an easy choice. They only take about ten minutes and can be served with just about any meal!

Ingredients needed

  • Mushrooms – white button mushrooms work fine, cremini work great as well
  • Onion – one yellow, adjust size according to your love for onions
  • Olive oil and butter – for frying
  • Garlic clove
  • Cooking sherry or a sweet white wine
  • Tamari or soy sauce
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How to make sauteed mushrooms and onions

Start with some olive oil and butter in a skillet on medium heat. When the butter has melted, add the onions and fry for a minute or two. Then add the mushrooms and stir to coat thoroughly with the buttery oil. Fry the mushrooms and onions for about 7-8 minutes, stirring occasionally to ensure everything is evenly cooked.

Add minced garlic and cook, stirring, for a minute.

Add a splash of sherry and tamari or soy sauce and stir well to evenly coat. Continue cooking for 2-3 minutes, or until the liquid has evaporated.

Soy Sauce vs. Tamari

I commonly see tamari suggested as a soy sauce substitute for those needing gluten-free variations. I assumed for a long time that it was simply gluten-free soy sauce. But there are other differences.

Soy sauce originated about 2200 years ago in ancient China and spread throughout the East and Southeast Asia where it is used in cooking and as a condiment. (Wikipedia)

Tamari is a type of soy sauce, produced in a specific region of Japan. It is made with little or no wheat products, so anyone highly sensitive to gluten should check ingredient labels carefully.

But I feel there is a clear difference in taste. Soy sauce can sometimes taste overwhelmingly salty to me. In comparison, tamari has a similar taste but without so much salt I feel that the other umami flavors really come through. I have started to migrate away from soy sauce and more toward tamari due to this. If, like me, you tend to be a little sensitive to salt, give tamari a try!

Serving suggestions for sauteed mushrooms and onions

Mushrooms and onions on a white plate

These mushrooms and onions go well with so many other dishes. Here are a few ideas:

Sauteed mushrooms and onions in a pan
Print Recipe
5 from 23 votes

Sauteed Mushrooms and Onions

An easy side dish to go with almost everything!
Prep Time2 mins
Cook Time10 mins
Total Time10 mins
Course: Side Dish
Cuisine: American
Servings: 4
Calories: 118kcal
Author: Sula


  • 1 tablespoon olive oil
  • 2 tablespoons butter
  • 1 yellow onion sliced
  • 16 oz mushrooms sliced
  • 1 garlic clove minced
  • Dash of cooking sherry sweet white wine can be substituted
  • Dash of tamari or soy sauce


  • Melt butter and olive oil in a large skillet on medium heat.
  • Add onion. Cook and stir for 1-2 minutes to start to soften.
  • Add mushrooms and stir to coat with buttery oil.
  • Cook 7-8 minutes, stirring occasionally, until onions are soft and mushrooms are beginning to brown.
  • Add garlic. Cook and stir for about a minute.
  • Add sherry and tamari and stir. Continue cooking for a couple minutes, until liquid evaporates.
  • Season with a little salt and pepper and serve!



Nutrition calculations do not include wine or tamari – please check labels for the products you use.


Calories: 118kcal | Carbohydrates: 7g | Protein: 4g | Fat: 10g | Saturated Fat: 4g | Cholesterol: 15mg | Sodium: 57mg | Potassium: 401mg | Fiber: 2g | Sugar: 3g | Vitamin A: 175IU | Vitamin C: 5mg | Calcium: 10mg | Iron: 1mg

Nutrition values are estimates only, using online calculators. Please verify using your own data.

Love mushrooms? Here are some more ways to enjoy them:


10 thoughts on “Sauteed Mushrooms and Onions

  1. 5 stars
    Mmm, this looks delicious! And would be perfect on tacos, too, or in a quesadilla! You come up with the most versatile recipes, Sula. I love it!

  2. 5 stars
    We made these sauteed mushrooms and onions for burger night and everyone wanted more! You’re right, they are easy to make and pack so much flavor. Next time, they are going on chicken…

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