Soft, savory and sautéed mushrooms and onions are deliciously caramelized in a cast iron pan and a perfect mushroom and onions side dish recipe.
Easily made in under 10 minutes, you cannot go wrong with sautéing up mushrooms. They are not only cost effective, but healthy and low in carbs.
Looking for a mushroom based side dish?
There is nothing easier than using cooking sherry to caramelize mushrooms and onions for a delicious mushroom side that can stand on its own. Sautéed mushrooms and onions are also amazing on hamburgers, omelets, added to steak bites or even grilled chicken. Seriously one of the easiest, done in mere minutes sides you can make, learning how to make mushrooms and onions as a recipe additive is essential.
Plus, once made, store these mushrooms in the fridge (always in an air tight container) for approximately 3-4 days. Mushrooms warm up deliciously!
Mushroom Side Dish Ingredients
Combined with perfectly seasoned and sauté onions, garlic, and of course any other varied herbs and spices you love, you can serve sautéed mushrooms and onions as a stand alone or a complimentary classic side dish recipe.
The recipe card with full measurements and instructions are available at the bottom of the post so you can print off and follow along easily.
- 1 onion
- cooking sherry
- soy sauce
- salt and pepper
Watch the Video Recipe
What are Caramelized Onions and Mushrooms?
Caramelizing is a term that basically means that you are browning up the food ingredients with a bit of sugar. While there is no sugar directly in this recipe, the soy sauce and sherry bring in just the right touch of robust flavors to really make each mushroom pop full of flavor.
This is a can’t go wrong onions and mushrooms recipe that is QUICK. All you need to get started in this recipe is a few simple, easy ingredients – most of which are likely right in your pantry.
Also, with ingredients like cooking wines and cooking sherries, its great to have recipes that use them or they can sit unused in cupboard for a bit.
This recipe does just that – combine delicious, simple ingredients but surprise you with an easy side dish. Last but not least, before you get started on this recipe, I must say that using a pre-seasoned cast iron skillet is the best way to saute.
If you do not own one, you are missing a perfect staple in your kitchen.
Grab a set of 2 preseasoned cast iron pans here– it will change the way you cook!
Variations for Sauteed Mushrooms and Onions
- KEEP IT SIMPLE: Cracked peppercorn and sea salt
- TRY OTHER HERBS: Try adding fresh herbs like thyme, rosemary, dill and parsley. These herbs add varying flavors to your mushrooms as well as color. If you choose to use dried herbs, add in at the beginning so they have time to soften, but if you use fresh herbs, add near the end so they do not overcook.
- CHANGE UP THE FLAVOR: Instead of soy and sherry, try teriyaki sauce or even white cooking wine.
If love mushrooms and you prefer an oven baked whole mushroom over a sliced stove top version, make sure you try this 15 minute roasted garlic mushroom recipe too.
Are Mushrooms and Onions a Keto Friendly Side Dish?
This site uses Carb Manager that automatically inputs the ingredients into the system and gives out an estimated nutritional value.
If your diet is very strict, please always be careful to double check with your own apps.
How to Sauté Mushrooms and Onions
Add sliced white mushrooms, chopped onions, butter and minced garlic to a large cast iron skillet.
Heat mushrooms over medium heat, stirring ingredients frequently until onions and mushrooms are soft and tender, which takes about 6-8 minutes.
Add 1 tablespoon of cooking sherry and 1 tablespoon soy sauce and mix well.
Continue to heat mushrooms and onions for 2 minutes, until mushrooms are caramelized and excess liquid is burned off.
Season mushrooms and onions with sea salt and cracked pepper.
Once your mushrooms start to cook and soften up, you can add remainder liquid ingredients cooking sherry and soy sauce ( low sodium is best so its not too salty) and mix everything together until combined and hot.
If you tested out my mushroom recipe and enjoyed it OR made alterations that went wonderful, I would love to hear about it! Please leave me a comment.
- 1 lb sliced mushrooms
- 1 onion, chopped
- 3 tablespoons butter
- 1 tablespoon garlic
- 1 tablespoon cooking sherry
- 1 tablespoon soy sauce
- salt and pepper
- Add sliced white mushrooms, chopped onions, butter and minced garlic to a large cast iron skillet.
- Heat mushrooms over medium heat, stirring ingredients frequently until onions and mushrooms are soft and tender, which takes about 6-8 minutes.
- Add 1 tablespoon of cooking sherry and 1 tablespoon soy sauce and mix well.
- Continue to heat mushrooms and onions for 2 minutes, until mushrooms are caramelized and excess liquid is burned off.
- Season mushrooms and onions with sea salt and cracked pepper.
- Serve hot either as a side, on a burger, chicken, pork, or even as a savory topping to an omelet.
KETO or LOW CARB: Onions and Mushrooms are a great, healthy side but please note that cooking sherry has carbs. Check with your carb app to decide if you would like to add the cooking sherry in your daily diet.
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Amount Per Serving: Calories: 126Total Fat: 9gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 23mgSodium: 387mgCarbohydrates: 10gFiber: 3gSugar: 4gProtein: 3g
Nutritional information is automatically calculated with ingredients and serving size and may not be accurate. Please always double check with your own nutritional apps as well.