Garlic Butter Mushrooms & Onions
If you’re looking for a delicious and quick side dish that can elevate any meal, you’ve come to the right place! Garlic Butter Mushrooms & Onions are a personal favorite of mine. They bring together the earthy flavors of mushrooms with the sweetness of caramelized onions, all enhanced by a rich garlic butter sauce. This dish is perfect for busy weeknights or family gatherings when you need something simple yet impressive.
What makes this recipe truly special is how easily it comes together. With just a handful of wholesome ingredients, you can create a flavorful side that complements everything from roasted chicken to grilled vegetables. Plus, who can resist the aroma of garlic sizzling in butter?
Why You’ll Love This Recipe
- Quick and Easy: This recipe takes only 25 minutes from start to finish, making it ideal for those hectic nights.
- Family-Friendly: Even the pickiest eaters will love the savory taste of these garlic butter mushrooms and onions.
- Versatile Dish: Perfect as a side for any protein or even enjoyed on their own over rice or pasta.
- Make-Ahead Friendly: You can prepare it ahead of time and simply reheat before serving!
- Flavorful: The combination of garlic, butter, and lemon zest creates an irresistible flavor that everyone will adore.

Ingredients You’ll Need
Let’s gather some simple ingredients to make this delightful dish! These wholesome components are easy to find and ready to transform your meal into something special.
For the Mushrooms & Onions
- 16 ounces small button mushrooms
- 2 Tablespoons olive oil
- 4 cloves garlic (chopped or crushed)
- 1 medium onion (minced)
- 1/2 cup chicken stock or white grape juice
- Zest from 1 medium lemon
- 1 tablespoon lemon juice
- 1/2 teaspoon chili flakes (or to taste)
- 4 tablespoons butter (divided)
- 2 tablespoons chopped parsley
- Kosher salt or sea salt (to taste)
- Fresh cracked black pepper (to taste)
Variations
This recipe is so flexible that you can easily make it your own! Here are some fun variations to try:
- Swap the mushrooms: Feel free to use your favorite mushroom variety like cremini or shiitake for different flavors and textures.
- Add some greens: Toss in some fresh spinach or kale during the last minute of cooking for added nutrition and color.
- Spice it up: If you love heat, add in some diced jalapeños or more chili flakes for an extra kick!
- Make it creamy: Stir in a splash of cream or vegan cream at the end for a richer sauce.
How to Make Garlic Butter Mushrooms & Onions
Step 1: Prepare the Mushrooms
Start by brushing the mushrooms clean. If their stems look dried out, trim them off. You can keep the mushrooms whole or cut them in half if they are larger. Keeping them whole helps retain their moisture while cooking!
Step 2: Sauté the Mushrooms
Heat a large skillet over medium-high heat and add olive oil. Once hot, toss in your mushrooms. Cook and stir until they start to brown and caramelize—this should take about 3-5 minutes. Browning really brings out their natural sweetness and deep flavor.
Step 3: Add Garlic and Onion
Now it’s time for flavor! Add 2 tablespoons of butter, letting it melt slightly before adding minced onions and chopped garlic. Cook everything together until lightly caramelized and softened—about 3-5 minutes. This step is crucial as sautéing releases those lovely sweet notes from both the onions and garlic.
Step 4: Pour in Stock & Seasoning
Next, pour in either chicken stock or white grape juice along with lemon zest, lemon juice, and chili flakes. Let this simmer for about 2 minutes until the liquid reduces slightly. This step enhances all those wonderful flavors you’ve built up so far!
Step 5: Finish with Butter & Parsley
Finally, stir in the remaining 2 tablespoons of butter along with chopped parsley. Cook for an additional minute until everything is well combined. Don’t forget to season with salt and pepper; this really pulls all the flavors together beautifully! Serve warm alongside your favorite dishes.
Enjoy making these Garlic Butter Mushrooms & Onions; I promise they will become a go-to favorite at your table!
Pro Tips for Making Garlic Butter Mushrooms & Onions
Cooking is all about experimenting and finding what works best for you, so here are some pro tips to help you master this delicious dish!
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Choose fresh mushrooms: Fresh mushrooms will provide the best flavor and texture. Look for firm, plump ones without any dark spots or sliminess.
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Don’t overcrowd the pan: Cooking in batches allows the mushrooms to brown properly rather than steam. This leads to that delightful caramelization we all love!
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Adjust seasoning: Taste as you go! Feel free to modify the amount of chili flakes or lemon juice based on your preference—personalizing a recipe makes it truly yours.
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Use high heat for a quick cook: A hot skillet helps achieve that lovely golden-brown crust on the mushrooms and onions, enhancing their flavors.
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Experiment with herbs: While parsley is a fantastic choice, consider adding thyme or rosemary for an aromatic twist that complements the garlic beautifully.
How to Serve Garlic Butter Mushrooms & Onions
These Garlic Butter Mushrooms & Onions can be served in many delightful ways, making them a versatile addition to your meal. Whether you’re dressing up a weeknight dinner or preparing for a gathering, this dish shines brightly on any table.
Garnishes
- Chopped chives: Sprinkle fresh chopped chives over the dish just before serving for a pop of color and mild onion flavor.
- Grated Parmesan cheese (or dairy-free alternative): A light dusting of cheese adds creaminess and richness that pairs beautifully with the garlic butter sauce.
Side Dishes
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Quinoa Salad: A light quinoa salad with cucumbers, tomatoes, and lemon vinaigrette offers a refreshing contrast to the rich mushrooms.
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Roasted Vegetables: Seasonal vegetables roasted until tender bring both color and health benefits to your plate while complementing the earthy flavors of the mushrooms.
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Creamy Polenta: The smooth texture of polenta absorbs the garlic butter sauce wonderfully, creating a comforting combination that’s hard to resist.
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Garlic Bread: A classic choice! Crispy garlic bread can soak up those delicious buttery juices and makes every bite even more enjoyable.
With these tips and serving suggestions, your Garlic Butter Mushrooms & Onions will not only taste incredible but also impress everyone at your table!

Make Ahead and Storage
This Garlic Butter Mushrooms & Onions recipe is perfect for meal prep, making it a convenient addition to your weekly cooking routine. You can prepare this dish ahead of time and enjoy the delicious flavors throughout the week!
Storing Leftovers
- Allow the mushrooms and onions to cool completely before storing.
- Place them in an airtight container.
- Store in the refrigerator for up to 3 days.
Freezing
- Ensure the dish is completely cooled before freezing.
- Use a freezer-safe container or bag, removing as much air as possible.
- Freeze for up to 2 months for best flavor and texture.
Reheating
- Thaw overnight in the refrigerator if frozen.
- Reheat in a skillet over medium heat until warmed through.
- You can also microwave in short intervals, stirring frequently, until hot.
FAQs
Here are some common questions about Garlic Butter Mushrooms & Onions that might help you out!
Can I use other types of mushrooms for Garlic Butter Mushrooms & Onions?
Absolutely! While this recipe is written for button mushrooms, you can use your favorite variety. Shiitake, cremini, or portobello would all work wonderfully!
How do I make Garlic Butter Mushrooms & Onions healthier?
For a lighter version of Garlic Butter Mushrooms & Onions, consider using less butter or substituting with olive oil. You can also increase the amount of vegetables by adding bell peppers or spinach.
Can Garlic Butter Mushrooms & Onions be made vegan?
Yes! Simply substitute butter with a plant-based alternative like vegan butter or coconut oil. The recipe will still be rich and flavorful without using any animal products.
Final Thoughts
I hope you enjoy making these delightful Garlic Butter Mushrooms & Onions! This recipe is not only simple but brings together wonderful flavors that are sure to impress your family and friends. Whether you’re prepping for a busy week or planning a cozy dinner, these mushrooms make the perfect side dish. Happy cooking, and don’t forget to share your creations!
Garlic Butter Mushrooms & Onions
Elevate your meals with this quick and flavorful Garlic Butter Mushrooms & Onions recipe. In just 25 minutes, you can create a savory side dish that combines the earthy richness of mushrooms with the sweetness of caramelized onions, all enveloped in a luscious garlic butter sauce. This versatile dish pairs beautifully with roasted chicken, grilled vegetables, or can even stand alone over rice or pasta. The irresistible aroma of garlic sizzling in butter will fill your kitchen, making this an instant favorite for busy weeknights and family gatherings alike.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: Serves 4
- Category: Side Dish
- Method: Sautéing
- Cuisine: Vegetarian
Ingredients
- 16 ounces small button mushrooms
- 2 tablespoons olive oil
- 4 cloves garlic (chopped)
- 1 medium onion (minced)
- 1/2 cup chicken stock
- Zest from 1 lemon
- 1 tablespoon lemon juice
- 4 tablespoons butter (divided)
- Salt and pepper to taste
- 2 tablespoons chopped parsley
Instructions
- Prepare the mushrooms by brushing them clean and trimming any dried stems. Keep them whole or halve larger ones.
- Heat olive oil in a large skillet over medium-high heat. Add mushrooms and sauté until browned, about 3-5 minutes.
- Add 2 tablespoons of butter, minced onion, and chopped garlic. Cook until caramelized, around 3-5 minutes.
- Pour in chicken stock, lemon zest, lemon juice, and chili flakes. Simmer for 2 minutes to reduce slightly.
- Stir in the remaining butter and parsley. Season with salt and pepper before serving warm.
Nutrition
- Serving Size: 1 cup (150g)
- Calories: 145
- Sugar: 2g
- Sodium: 220mg
- Fat: 10g
- Saturated Fat: 5g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 9g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 15mg
