Garlic Butter Mushrooms & Onions
If you’re looking for a delicious side dish that’s bursting with flavor, let me introduce you to my beloved Garlic Butter Mushrooms & Onions. This dish is a delightful combination of earthy mushrooms and sweet onions sautéed in rich garlic butter. It’s the perfect accompaniment to any meal and is sure to impress your family and friends. Whether it’s a busy weeknight dinner or a special gathering, this recipe is simple enough for everyday cooking yet elegant enough for celebrations.
What makes this dish truly special is how quickly it comes together. With just a handful of wholesome ingredients, you can create something that tastes gourmet without the fuss. Plus, the aroma of garlic and butter wafting through your kitchen is simply irresistible!
Why You’ll Love This Recipe
- Quick to prepare: This dish takes just 25 minutes from start to finish, making it ideal for those hectic evenings.
- Family-friendly: Kids and adults alike will enjoy this savory side. The flavors are comforting and familiar!
- Versatile: Serve it alongside any main dish – grilled chicken, fish, or even on top of pasta.
- Make-ahead option: You can prep the ingredients in advance, so cooking is a breeze when it’s time to eat.
- Flavor explosion: The combination of garlic, lemon, and spices creates a mouthwatering taste that will have everyone asking for seconds.

Ingredients You’ll Need
Let’s gather our simple and wholesome ingredients for these Garlic Butter Mushrooms & Onions! This recipe uses fresh produce and pantry staples that you might already have at home.
For the Dish
- 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
One of the best things about Garlic Butter Mushrooms & Onions is how flexible it is! Feel free to get creative based on what you have on hand or your personal preferences.
- Swap the mushrooms: Use shiitake, cremini, or even portobello mushrooms for different flavors and textures.
- Add some greens: Toss in baby spinach or kale during the last minute of cooking for an extra boost of nutrition.
- Make it spicy: If you love heat, add more chili flakes or even some diced jalapeños for a kick.
- Go vegan: Simply replace the butter with olive oil or a plant-based butter alternative for a vegan-friendly version.
How to Make Garlic Butter Mushrooms & Onions
Step 1: Clean the Mushrooms
Start by brushing the mushrooms clean. It’s important to remove any dirt so they taste fresh. If the stems look dried out, trim them up but keep the mushrooms whole. If they are large, feel free to cut them in half!
Step 2: Sauté the Mushrooms
Heat a large skillet over medium-high heat and add olive oil. Once hot, toss in your cleaned mushrooms. Cook them until they start to brown and caramelize—about 3-5 minutes. This step adds depth and enhances their natural flavor.
Step 3: Add Garlic and Onion
Now it’s time to bring in that heavenly aroma! Add 2 tablespoons of butter along with minced onions and garlic. Stir everything together until the onions are lightly caramelized and soft—this should take another 3-5 minutes. Sautéing brings out their sweetness which perfectly complements the earthiness of the mushrooms.
Step 4: Flavor It Up
Pour in your choice of chicken stock or white grape juice along with lemon zest, lemon juice, and chili flakes. Cook this mixture for about 2 minutes until it reduces slightly. This flavorful liquid will coat our mushrooms beautifully!
Step 5: Finish with Butter
Finally, stir in the remaining 2 tablespoons of butter along with chopped parsley. Cook everything together for an additional minute before seasoning with salt and pepper to taste. Serve warm and watch everyone dig in happily!
Enjoy making these Garlic Butter Mushrooms & Onions! They are sure to become a favorite at your table just like they are at mine!
Pro Tips for Making Garlic Butter Mushrooms & Onions
Cooking can be a delightful adventure, and these pro tips will help ensure your Garlic Butter Mushrooms & Onions turn out perfectly every time!
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Choose the right mushrooms: Opt for fresh button mushrooms or try varieties like cremini or shiitake for a richer flavor. Each type brings its own unique taste to the dish, enhancing the overall experience.
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Don’t overcrowd the pan: When sautéing the mushrooms, give them enough space in the skillet. Overcrowding leads to steaming instead of browning, which is key for that delicious caramelized flavor.
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Adjust seasoning to taste: Feel free to tweak the salt and pepper levels according to your preference. This allows you to personalize the dish and make it just right for your palate.
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Experiment with herbs: While parsley adds a lovely touch, you can also try thyme or rosemary for an aromatic twist. Fresh herbs elevate the flavor profile and bring a delightful freshness.
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Make it ahead: This dish can be prepared in advance and reheated before serving. Preparing it ahead of time allows the flavors to meld beautifully, making it even more delicious when served!
How to Serve Garlic Butter Mushrooms & Onions
This savory side dish is not only tasty but also versatile! You can serve Garlic Butter Mushrooms & Onions as a hearty accompaniment or even as a standalone treat. Here are some ideas on how to present this delightful dish:
Garnishes
- Chopped parsley: A sprinkle of fresh parsley on top adds vibrant color and a touch of freshness.
- Lemon wedges: Serve with lemon wedges on the side for an extra burst of citrus flavor when squeezed over the mushrooms.
- Grated Parmesan cheese: For those who enjoy cheese, a light dusting of grated Parmesan can add creaminess and depth (ensure it’s suitable for your dietary needs).
Side Dishes
- Quinoa salad: A refreshing quinoa salad with cucumbers, tomatoes, and a lemon vinaigrette complements the earthiness of the mushrooms wonderfully.
- Garlic bread: Crispy garlic bread is perfect for soaking up the delicious buttery sauce from the mushrooms—comfort food at its best!
- Roasted vegetables: Pair with roasted seasonal vegetables like carrots or Brussels sprouts for a colorful and nutritious plate.
- Rice pilaf: Fluffy rice pilaf seasoned with herbs provides a lovely base that balances out the richness of the garlic butter sauce.
With these serving suggestions and pro tips, your Garlic Butter Mushrooms & Onions will shine as a standout dish at any meal! Enjoy cooking and sharing this delightful recipe with family and friends!

Make Ahead and Storage
This Garlic Butter Mushrooms & Onions recipe is perfect for meal prep, allowing you to enjoy a delicious side dish throughout the week with minimal effort.
Storing Leftovers
- Allow the mushrooms and onions to cool completely.
- Transfer them to an airtight container.
- Store in the refrigerator for up to 3 days.
Freezing
- Let the dish cool fully before freezing.
- Portion it into freezer-safe containers or bags.
- Label with the date and freeze for up to 2 months. Note that texture may change slightly upon thawing.
Reheating
- For best results, reheat in a skillet over medium heat until warmed through.
- You can also microwave in short intervals, stirring occasionally, until hot.
FAQs
Here are some common questions about Garlic Butter Mushrooms & Onions.
Can I use other types of mushrooms for Garlic Butter Mushrooms & Onions?
Absolutely! Feel free to experiment with your favorite mushroom varieties such as cremini, shiitake, or portobello. Each type will offer a unique flavor and texture.
How do I adjust the spice level in Garlic Butter Mushrooms & Onions?
You can easily modify the spice level by adding more or fewer chili flakes according to your taste preferences. For a milder option, omit them entirely.
Can I make this recipe vegan?
Yes! Simply substitute the butter with a plant-based alternative like vegan butter or olive oil for a delicious vegan version of Garlic Butter Mushrooms & Onions.
Final Thoughts
I hope you enjoy making this delightful Garlic Butter Mushrooms & Onions recipe as much as I do! It’s a fantastic way to elevate any meal with its rich flavors and comforting textures. Don’t hesitate to share your experience or any variations you try. Happy cooking!
Garlic Butter Mushrooms & Onions
Garlic Butter Mushrooms & Onions are a quick and flavorful side dish that brings together the earthy taste of mushrooms and the sweetness of onions, all enhanced by rich garlic butter. In just 25 minutes, you can create a gourmet dish that complements any meal, whether it’s a casual weeknight dinner or a special gathering.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: Serves 4
- Category: Side Dish
- Method: Sautéing
- Cuisine: American
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 medium lemon
- 1 tablespoon lemon juice
- 1/2 teaspoon chili flakes (or to taste)
- 4 tablespoons butter (divided)
- 2 tablespoons chopped parsley
- Salt and pepper to taste
Instructions
- Clean the mushrooms by brushing them to remove dirt; trim stems if necessary.
- Heat olive oil in a large skillet over medium-high heat. Add mushrooms and sauté for 3-5 minutes until browned.
- Add butter, minced onions, and garlic; sauté until onions are caramelized (3-5 minutes).
- Pour in chicken stock along with lemon zest, lemon juice, and chili flakes; cook for about 2 minutes.
- Stir in remaining butter and chopped parsley; season with salt and pepper to taste before serving warm.
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 180
- Sugar: 2g
- Sodium: 300mg
- Fat: 15g
- Saturated Fat: 8g
- Unsaturated Fat: 7g
- Trans Fat: 0g
- Carbohydrates: 10g
- Fiber: 3g
- Protein: 4g
- Cholesterol: 30mg
