Learn how to make rich, savory sautéed mushrooms and onions with just a few simple ingredients! Pan-seared to perfection with garlic, fresh thyme, honey, and balsamic vinegar, this easy side dish brings a flavorful twist to any meal. Perfect as a side or topping, these caramelized mushrooms and onions will surely be a hit!
Ready in just 30 minutes, this quick and easy recipe is packed with flavor, making it a delicious way to enhance everything from mains to salads and sandwiches.
- Why Are You Going To Love Sautéed Mushrooms and Onions
- Ingredients Needed
- How To Make Sautéed Mushrooms and Onions
- Tips for Making the Best Caramelized Mushrooms And Onions
- Storing Ideas
- Can I Use A Different Type Of Mushroom For This Recipe?
- Is It Necessary To Use Honey?
- Sautéed Mushrooms And Onions
I’m a mushroom lover, and I enjoy them in many forms, from side dishes like air fryer mushrooms and stuffed mushrooms to main dishes like mushroom soup and portobello keto pizza.
Why Are You Going To Love Sautéed Mushrooms and Onions
- Quick and Easy: Ready in just about 30 minutes with minimal prep.
- Versatile: Perfect as a side dish, topping, or mixed into other meals.
- Simple Ingredients: Uses common ingredients you likely already have in your kitchen.
- Healthy Option: Low in calories and packed with nutrients from onions and mushrooms.
- Customizable: Adjust the seasoning to your taste or add extra ingredients like bell peppers.
- Perfect for Any Meal: Complements a variety of dishes, from steak to pasta.
- Vegetarian Friendly: A great option for those following a vegetarian diet.
- Comforting and Satisfying: The caramelized mushrooms and onions offer a comforting, savory taste that’s sure to please.
Ingredients Needed
You’ll be surprised to discover that you can prepare such delicious side dishes with just a few easy ingredients that I’m sure you already have in your pantry. Here is a list of everything you will need:
- Olive Oil – Butter can be used for a richer taste, or avocado oil and canola oil are good neutral alternatives.
- Garlic – Fresh garlic is best for its strong, aromatic flavor. Mince it finely to distribute its taste evenly.
- Mushrooms – I used brown mushrooms, but you can also use white mushrooms or portobello mushrooms, which are also great to saute.
- Onions – Yellow onions are ideal for their sweet and mild flavor, which caramelizes well when cooked.
- Salt & Pepper – Used to enhance all the flavors in this recipe.
- Thyme – It pairs perfectly with mushrooms, but you can also use oregano or rosemary.
- Honey – Balances the savory flavors with a touch of sweetness.
- Worcestershire Sauce – Soy sauce or tamari can be used for a similar salty, umami flavor, though it will be less tangy.
- Balsamic Vinegar – Use high-quality balsamic vinegar for a rich, slightly sweet, and tangy flavor.
How To Make Sautéed Mushrooms and Onions
To make this delicious sautéed mushrooms and onions recipe, you have to follow some easy steps. Here is everything you need to do:
Heat the Oil & Sauté the Garlic
Place a large skillet over medium heat. Add olive oil or butter—whichever you prefer.
I love using butter for that rich, savory flavor, but olive oil is perfect if you want a lighter option. Heat until the oil shimmers or the butter melts and starts bubbling. This is your signal that the pan is perfectly heated and ready for the next step.
Once the oil is hot, toss in the minced garlic. Sauté for 1-2 minutes, stirring frequently to keep it from sticking. Watch closely—you want the garlic to turn a light golden color and become fragrant. Be careful not to burn it because burnt garlic can turn bitter.
If your garlic starts to brown too quickly, lower the heat slightly to keep it cooking evenly.
Add Onions and Mushrooms
Add the sliced onions and mushrooms to the skillet with the garlic. Stir well to coat them evenly with the oil and garlic.
Pro Tip: For the best results, use a mixture of different mushrooms like cremini or shiitake to add more depth to the dish. The combination of textures makes it extra delicious.
Sprinkle in salt, black pepper, and thyme. Don’t be shy—seasoning early helps the flavors build as everything cooks. Stir everything together to evenly distribute the seasoning throughout the onions and mushrooms.
Fresh thyme is my go-to for a herby kick, but dried thyme works well, too, if that’s what you have on hand.
Let the onions and mushrooms cook for about 15 minutes, stirring occasionally. Keep the heat at medium to avoid burning. You’re looking for the onions to become caramelized and turn a rich golden brown, while the mushrooms should become tender and nicely browned.
Pro Tip: If your veggies start to stick, add a splash of water or broth to deglaze the pan and keep everything cooking smoothly without burning.
Once the onions and mushrooms are beautifully caramelized, stir in the honey, Worcestershire sauce, and balsamic vinegar. These ingredients bring everything together, adding a perfect balance of sweetness and tang. Let the mixture simmer for 3-5 minutes, allowing the sauce to thicken slightly and the flavors to blend.
Pro Tip: If you like a stronger balsamic flavor, you can drizzle a little extra on top after cooking.
Add a Splash of Flavor, Taste, and Serve with Love
Taste the mushrooms and onions to check if they need a little more salt or pepper. This step is key to perfecting the flavor. Adjust as needed, stirring everything together so that the seasoning is evenly distributed.
Remove the skillet from the heat and transfer your beautifully sautéed mushrooms and onions to a serving dish. They’re delicious served warm as a side dish, or you can use them to top steaks, burgers, or sandwiches.
I love adding these to a grilled cheese sandwich for an extra layer of flavor or tossing them into pasta.
Tips for Making the Best Caramelized Mushrooms And Onions
- Use Fresh Ingredients: Fresh onions and mushrooms will provide the best flavor and texture. Choose firm, unblemished mushrooms and yellow onions for optimal results.
- Slice Uniformly: Cut the onions and mushrooms into even slices. Uniform slices ensure that they cook evenly and caramelize consistently.
- Stir Occasionally: Stir the onions and mushrooms every few minutes to ensure even cooking. Constant stirring can cause uneven caramelization, so let them sit undisturbed between stirs.
- Adjust the Heat: Start cooking over medium heat to get the onions and mushrooms to begin caramelizing. If they start to burn, reduce the heat to medium-low. Caramelization should be a slow process to develop deep flavors.
- Deglaze the Pan: If you notice any browned bits sticking to the bottom of the skillet, deglaze the pan by adding a small amount of liquid (like Worcestershire sauce or balsamic vinegar) and scraping up the bits. This adds extra flavor to the dish.
- Be Patient: Caramelizing takes time. Don’t rush the process by increasing the heat, as this can lead to burnt bits and uneven caramelization. Aim for a slow, steady cook to develop rich, deep flavors.
- Finish with Fresh Herbs: For an added layer of flavor, consider stirring in some fresh herbs like parsley or thyme just before serving. They add a burst of freshness that complements the caramelized taste.
Storing Ideas
- Fridge – You can store the leftovers in an airtight container in the fridge for up to 7 days.
- Freezer – place the cooked mushrooms and onions in an airtight container and freeze for up to 2 months. Thaw overnight before reheating.
Reheat caramelized mushrooms and onions leftovers in a skillet over medium-low heat or the microwave.
Can I Use A Different Type Of Mushroom For This Recipe?
Yes, you can use various types of mushrooms, such as cremini, portobello, or white button mushrooms. Each type will give a slightly different flavor and texture, but they will all work well in this recipe.
Is It Necessary To Use Honey?
Honey adds a touch of sweetness that balances the savory flavors. If you prefer not to use honey, you can substitute it with a small amount of sugar or omit it entirely if you like a more savory profile.
Sautéed Mushrooms And Onions
Description
Ingredients
- 2 tbsp olive oil or butter
- 4 cloves garlic minced
- 1 pound mushrooms sliced (we used a mixture of baby Bella and shiitake)
- 4 yellow onions medium, thinly sliced
- 1 tsp salt or more to taste
- 2 tsp thyme fresh (could use 1 teaspoon of dried)
- ½ tsp black pepper
- 1 tbsp honey
- 2 tbsp Worcestershire sauce
- 1 tbsp balsamic vinegar
Instructions
- Heat the Oil: In a large skillet, heat the olive oil or butter over medium heat until hot and shimmering.
- Sauté Garlic: Add the minced garlic to the skillet and cook for 1-2 minutes, stirring frequently, until fragrant and slightly golden.
- Add Onions and Mushrooms: Add the sliced onions and mushrooms to the skillet. Stir well to combine with the garlic.
- Season: Sprinkle in the salt, black pepper, and thyme. Stir to distribute the seasonings evenly.
- Cook Until Golden: Continue to cook, stirring occasionally, for about 15 minutes or until the onions and mushrooms are golden brown and tender.
- Add Sweetness and Flavor: Stir in the honey, Worcestershire sauce, and balsamic vinegar. Cook for 3-5 minutes, allowing the sauce to simmer and thicken.
- Adjust Seasoning: Taste and add more salt or pepper if needed.
- Serve: Remove from heat and serve warm. These sautéed mushrooms and onions make a great side dish or topping for steaks, burgers, or sandwiches.
Nutrition information is shared to make meal planning easier. Values are estimates and can vary depending on the ingredients, brands, and serving sizes used. Learn more in my nutrition policy.
