Sautéed Mushrooms and Onions Recipe

Sautéed mushrooms and onions make for a versatile and flavorful side dish that can elevate a variety of meals.

Whether you’re serving them with a steak, atop a burger, or mixed into pasta, these savory vegetables add a delicious depth of flavor to any plate.

In this article, we’ll dive into a detailed recipe for perfectly sautéed mushrooms and onions, share tips for enhancing the dish, and suggest complementary main courses.

  • Prep Time: 10 minutes
  • Cook Time: 15 minutes
  • Total Time: 25 minutes
  • Servings: 4
Sautéed Mushrooms and Onions Recipe
 easy

Ingredients

To start, gather the following ingredients:

  • 8 oz (about 225g) of mushrooms (cremini, button, or a mix)
  • 1 large yellow onion
  • 2 tablespoons of olive oil
  • 2 tablespoons of butter
  • 2 cloves of garlic, minced
  • Salt and freshly ground black pepper, to taste
  • 1 teaspoon of dried thyme or 2 teaspoons of fresh thyme, chopped
  • Optional: 1 tablespoon of balsamic vinegar or soy sauce

Equipment

Ensure you have these tools on hand:

  • A large skillet or sauté pan
  • A sharp knife
  • A cutting board
  • A spatula or wooden spoon
  • A small bowl

Preparation

Before you begin cooking, prepare your ingredients:

  1. Clean the mushrooms: Gently wipe them with a damp cloth or paper towel to remove any dirt. Avoid soaking them in water as they can absorb moisture, leading to sogginess.
  2. Slice the mushrooms: Cut them into even slices, about 1/4 inch thick, to ensure they cook evenly.
  3. Prepare the onion: Peel and cut it in half, then slice it into thin, even strips. Aim for a thickness similar to the mushrooms.
  4. Mince the garlic: Use a garlic press or finely chop the garlic cloves.

Cooking Steps

Follow these steps to sauté your mushrooms and onions to perfection:

Step 1: Heat the Pan

Place your skillet over medium-high heat. Add the olive oil and butter to the pan. The combination of oil and butter ensures a higher smoke point while adding richness to the dish. Allow the butter to melt completely and start to sizzle.

Step 2: Add the Onions

Add the sliced onions to the pan once the oil and butter are hot. Stir to coat them evenly in the fat. Cook the onions for about 5 minutes, stirring occasionally. The goal is to soften them and begin the caramelization process, which enhances their natural sweetness.

Step 3: Introduce the Mushrooms

Next, add the sliced mushrooms to the skillet. Spread them out in an even layer, avoiding overcrowding. If the pan is too full, the mushrooms will steam rather than sauté, leading to a rubbery texture. Let them cook undisturbed for 3–4 minutes to develop a golden-brown crust.

Step 4: Stir and Season

After the initial browning, stir the mushrooms and onions together. Season with salt and freshly ground black pepper to taste. Add the minced garlic and thyme at this point. The garlic should be added later to prevent burning, which can impart a bitter flavor.

Step 5: Cook Until Tender

Continue to cook, stirring occasionally, for another 5–7 minutes. The mushrooms should release their moisture, and the onions should become tender and caramelized. If the pan gets too dry, you can add a little more olive oil or a splash of water.

Step 6: Add Optional Flavor Boost

For an extra layer of flavor, consider adding a splash of balsamic vinegar or soy sauce. Balsamic vinegar adds a tangy sweetness, while soy sauce provides umami richness. Stir well to coat the mushrooms and onions evenly.

Step 7: Serve and Enjoy

Remove the skillet from the heat. Taste and adjust the seasoning if necessary. Transfer the sautéed mushrooms and onions to a serving dish and enjoy them while hot.

Tips to Make It Better

Choose the Right Mushrooms

Different mushrooms bring unique flavors and textures to the dish. Cremini mushrooms, also known as baby bellas, offer a meaty texture and earthy flavor. Button mushrooms are milder and more delicate, making them a versatile choice. For a gourmet touch, try shiitake or oyster mushrooms.

Don’t Crowd the Pan

Overcrowding the skillet prevents the mushrooms from browning properly. If necessary, cook them in batches to ensure they have enough space to caramelize. Browning enhances the flavor, so it’s worth the extra step.

Control the Heat

Cooking over medium-high heat ensures the mushrooms and onions caramelize without becoming soggy. If the pan is too hot, the vegetables can burn; if it’s too cool, they may become mushy. Adjust the heat as needed to maintain a steady sizzle.

Use Fresh Herbs

While dried thyme works well, using fresh herbs can elevate the dish. Fresh thyme, rosemary, or parsley adds a burst of flavor and a pop of color. Add fresh herbs at the end of cooking to preserve their bright taste.

Experiment with Add-ins

Enhance the dish by adding other ingredients. Sautéed bell peppers, spinach, or cherry tomatoes can add color and flavor. A splash of white wine or a sprinkle of Parmesan cheese can also add depth to the dish.

What Goes Well with Sautéed Mushrooms and Onions

Steaks and Grilled Meats

Sautéed mushrooms and onions are a classic accompaniment to steaks. Their rich, savory flavors complement the meat’s juiciness and add complexity to each bite. They also pair wonderfully with grilled pork chops or chicken.

Burgers and Sandwiches

Top a juicy burger with a generous serving of sautéed mushrooms and onions for a gourmet twist. They add moisture and umami flavor, elevating the overall taste. They also work well in sandwiches, especially those with roast beef or turkey.

Pasta Dishes

Mix the mushrooms and onions into pasta for a quick and flavorful meal. They pair well with creamy sauces like Alfredo or light olive oil-based sauces. For a vegetarian option, toss them with spaghetti and Parmesan cheese.

Eggs and Breakfast Dishes

Add the sautéed vegetables to scrambled eggs, omelets, or frittatas for a hearty breakfast. Their savory flavor enhances the eggs, making them more filling and flavorful. They also pair well with breakfast meats like sausage or bacon.

Roasted Vegetables and Grain Bowls

Combine the mushrooms and onions with roasted vegetables like Brussels sprouts or sweet potatoes for a nutritious side dish. They also make a great topping for grain bowls, adding a rich, savory element to quinoa or farro.

Conclusion

Sautéed mushrooms and onions are a versatile, easy-to-make side dish that can complement a wide range of main courses. By following these tips and exploring different flavor combinations, you can create a delicious and memorable addition to any meal. Enjoy experimenting with this simple yet flavorful recipe, and watch how it transforms your culinary creations.