Sunday Supper is an Amazon Associate and may receive compensation for purchases made through affiliate links.
Sautéed onions and mushrooms are super easy to make and are ready in under 15 minutes! You can create restaurant-style dishes with this simple recipe!
I also love that Sautéed Mushrooms and Onions are a perfect, versatile side dish recipe too!
- What do I need to sauté onions and mushrooms?
- How to Clean Mushrooms
- How to Sauté Onions and Mushrooms
- Mushrooms and Onions for Steak
- Sautéd Onions and Mushrooms for Burgers
- Recipe Tips
- Is a mushroom a vegetable?
- Are mushrooms good for you?
- Can you freeze this dish?
- Reheating Frozen Mushrooms
- What to Make with Mushrooms and Onions
- 📌 Pin it for later!
- 📋 Recipe
What do I need to sauté onions and mushrooms?
All you need to make this easy mushroom side dish is a skillet and a spatula!
This is one of the easiest and best side dishes for steaks, chicken, pork chops, and more! Because it’s so simple and my family loves it, I cook it up all of the time to serve with our favorite family dinners.
It’s an elevated version of our Easy Caramelized Onions, but with mushrooms! The secret ingredient is the addition of Worcestershire sauce.
How to Clean Mushrooms
When cleaning mushrooms, you want to wipe them down or very gently rinse them instead of soaking them in water.
Mushrooms absorb water and can become mushy, so it is not a good idea to let them take on too much water.
- If using whole mushrooms, before slicing, wipe each mushroom down with a damp paper towel. You can gently rinse the mushrooms under cool water, but you must dry them with paper towels completely after rinsing. Don’t let them soak!
- If using sliced mushrooms, and you want to give them an extra clean, place them in a colander and rinse under cool water. Once again, make sure to dry them with a paper towel and do not let them soak.
How to Sauté Onions and Mushrooms
Sautéing mushrooms and onions is so simple, you’ll be done in under 15 minutes from start to finish. This easy dish creates amazing results!
- In a skillet, melt butter over medium-high heat.
- Add mushrooms and cook for 5 minutes. They should begin to sweat and brown.
- Reduce heat to medium, add the sliced onion, salt, pepper, and Worcestershire sauce and cook for another 5-7 minutes, stirring frequently, or until the onions are soft and brown.
Mushrooms and Onions for Steak
At our house, ribeyes are always a favorite and nothing elevates them more than this recipe.
Sautéd Onions and Mushrooms for Burgers
- Don’t burn the butter. Please be careful not to burn the melting butter. If you do, you will have to start all over!
- Cook the mushrooms over medium-high heat. Since they release a lot of moisture, they must be cooked over high heat and stirred constantly so they do not burn.
- Try another type of mushroom! We used white mushrooms in this sautéed onions and mushrooms recipe, but we also love shiitake mushroom or baby portobello mushrooms if you prefer.
Is a mushroom a vegetable?
Interestingly, in scientific terms, mushrooms are not a vegetable, they are an edible fungus.
In culinary terms, mushrooms are basically a vegetable. They are used as a savory ingredient in recipes, usually to complement meats or other vegetables.
You can even use mushrooms as a meat substitute, such as a grilled Portobello mushroom cap.
Are mushrooms good for you?
We love the fact that mushrooms are very healthy for you! According to an article from Medical News Today, mushrooms are packed with nutritional value, from fiber and protein to important nutrients like Vitamin B and D.
They’re also a great source of protein for those on a plant-based diet. Plus, we pair them with onions, which are low in calories and also contain fiber and important nutrients.
Can you freeze this dish?
Yes! You can freeze sautéed mushrooms and onions. After sautéing the dish, let it cool, then transfer to an air-tight container and freeze for up to three months. Make sure to label the container.
Reheating Frozen Mushrooms
To reheat, first let them thaw in the refrigerator. Then, reheat in a skillet with a few tablespoons of butter over medium heat, until the dish warms through. Serve, and enjoy!
What to Make with Mushrooms and Onions
If you’re looking for an easy side dish this holiday season that’s also savory and delicious, sautéed mushrooms and onions are definitely for you.
Mushrooms and onions make one of the best prime rib side dishes. You must try our easy mushroom and onion recipe with some of our favorite prime rib recipes!
Another family favorite is our steak Diane recipe. It is a mushrooms lover’s perfect dish!
📌 Pin it for later!Did you enjoy this page? Save it on Pinterest for later!
Save the Video Pin
Sautéed Mushrooms and Onions
- 3 Tbsp. unsalted butter
- 1 pound white mushrooms sliced
- 1 sweet yellow onion sliced
- ½ tsp salt
- ½ tsp pepper
- 2 Tbsp. Worcestershire sauce
- In a skillet, melt the butter over medium-high heat, then add the mushrooms and cook for 5 minutes.
- Next, reduce heat to medium, add the sliced onion, salt, pepper, and Worcestershire. Cook for another 5-7 minutes or until the mushrooms and onions are soft and browned. Serve warm.
- Don’t let the Mushrooms and Onions dry out! If the mushrooms and onions soak up too much of the juices, you can add additional Worcestershire sauce 1 teaspoon at a time.
- Do not replace the sweet yellow onion with white or red, you want to use only a sweet yellow onion for this dish.
- Variety of Mushrooms: We used white mushrooms in this recipe but, we also love using shiitake mushroom or baby portobello mushrooms if preferred.