Garlic Butter Mushrooms & Onions
If you’re looking for a side dish that’s bursting with flavor and quick to prepare, you’ve come to the right place! Garlic Butter Mushrooms & Onions is one of those recipes that has a special place in my heart. It’s perfect for busy weeknights when you need something delicious on the table fast, but it also shines at family gatherings or dinner parties. The rich, buttery sauce and the earthy flavors of mushrooms and onions make this dish irresistible. Trust me, once you try it, you’ll want to whip it up again and again!
Why You’ll Love This Recipe
- Quick and Easy: You can have this dish ready in just 25 minutes, making it perfect for any night of the week.
- Packed with Flavor: The combination of garlic, butter, and lemon zest creates a deliciously savory experience that pairs well with almost any main course.
- Family-Friendly: Kids love the tender mushrooms and sweet caramelized onions—it’s a great way to sneak in some veggies!
- Versatile: You can easily switch up the ingredients based on what you have at home or your personal preferences.
- Make-Ahead Friendly: This dish stores well in the fridge, so you can prepare it ahead of time for easy reheating.

Ingredients You’ll Need
Let’s gather some simple, wholesome ingredients to make this delightful dish! You probably have most of these in your kitchen already. Remember, while this recipe calls for button mushrooms, feel free to use your favorite variety.
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
This Garlic Butter Mushrooms & Onions recipe is wonderfully flexible! Here are a few variations you might enjoy:
- Add Protein: Toss in some cooked chicken or shrimp to make this dish a complete meal.
- Swap the Veggies: Try adding bell peppers or spinach for an extra boost of color and nutrients.
- Experiment with Herbs: Fresh thyme or rosemary can add a lovely aromatic touch to this dish.
- Make it Vegan: Swap butter for your favorite plant-based alternative and use vegetable broth instead of chicken stock.
How to Make Garlic Butter Mushrooms & Onions
Step 1: Prepare the Mushrooms
First things first: brush the mushrooms clean. If they have dried-out stems, trim them off. Keeping them whole makes for a beautiful presentation! If any mushrooms are particularly large, feel free to cut them in half. This step ensures even cooking and enhances their flavor.
Step 2: Sauté the Mushrooms
Heat a large skillet over medium-high heat and add olive oil. Once hot, toss in those gorgeous mushrooms. Cook and stir until they start to brown and caramelize—this should take about 3-5 minutes. Browning brings out their natural sweetness and adds depth to your dish.
Step 3: Add Garlic and Onions
Next, add 2 tablespoons of butter to the pan. Let it melt a bit before adding minced onions and garlic. Cook everything together until the onions are lightly caramelized and softened—about another 3-5 minutes. This step is key; caramelizing enhances their sweetness and makes your kitchen smell amazing!
Step 4: Build Flavor with Stock and Citrus
Pour in your choice of chicken stock or white grape juice along with lemon zest, lemon juice, and chili flakes. Allow everything to cook down for about 2 minutes until the liquid reduces slightly. This will create a rich sauce that coats all those lovely mushrooms.
Step 5: Finish with Butter and Parsley
Finally, add the remaining 2 tablespoons of butter along with chopped parsley. Stir well and cook for another minute. Season with salt and fresh cracked black pepper to taste. Serve warm as a delightful side dish that complements any meal!
Enjoy your Garlic Butter Mushrooms & Onions!
Pro Tips for Making Garlic Butter Mushrooms & Onions
Cooking can be a delightful experience, and with these helpful tips, you’ll create the most flavorful Garlic Butter Mushrooms & Onions!
- Choose Fresh Mushrooms: Fresh mushrooms will have a firmer texture and better flavor. Look for mushrooms that are plump and dry, without any dark spots or sliminess.
- Don’t Overcrowd the Pan: Cooking mushrooms in batches if necessary allows them to brown properly instead of steaming. This enhances their natural sweetness and gives them that delicious caramelized flavor.
- Adjust Seasonings to Taste: Feel free to tweak the amount of chili flakes or lemon juice based on your preference. Balancing flavors is key to creating a dish that suits your taste buds perfectly.
- Experiment with Different Mushroom Varieties: While button mushrooms are fantastic, varieties like cremini or shiitake can add different textures and flavors. Don’t hesitate to try new things!
- Let It Rest Before Serving: Allowing your garlic butter mushrooms and onions to sit for a few minutes after cooking helps the flavors meld together even more, resulting in a richer taste.
How to Serve Garlic Butter Mushrooms & Onions
Presenting your Garlic Butter Mushrooms & Onions beautifully can elevate your dining experience! Here are some ideas to serve this dish with flair:
Garnishes
- Chopped Chives: Finely chopped chives add a mild onion flavor and vibrant color, making the dish visually appealing.
- Lemon Wedges: Serving lemon wedges on the side allows guests to drizzle fresh lemon juice over their portion, enhancing the bright flavors.
Side Dishes
- Quinoa Salad: A light quinoa salad with cherry tomatoes, cucumber, and a lemon vinaigrette complements the richness of the mushrooms while adding freshness.
- Roasted Vegetables: Seasonal roasted vegetables such as asparagus or bell peppers provide a crunchy texture and colorful presentation alongside the tender mushrooms.
- Mashed Potatoes: Creamy mashed potatoes offer a comforting base that pairs beautifully with the savory garlic butter sauce from the mushrooms.
- Whole Grain Bread: A slice of crusty whole grain bread is perfect for soaking up all that delicious garlic butter sauce, making every bite count.
Incorporating these serving suggestions will not only enhance your meal but also impress your family and friends! Enjoy your delightful creation!

Make Ahead and Storage
This Garlic Butter Mushrooms & Onions recipe is perfect for meal prep! You can easily whip up a batch ahead of time, making it an excellent addition to your weekly meals. Here’s how to store your delicious dish:
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.
- Place portions in freezer-safe containers or bags, leaving some space for expansion.
- Freeze for up to 2 months.
Reheating
- For best results, reheat in a skillet over medium heat until warm, stirring occasionally.
- You can also microwave in short intervals (30 seconds at a time) until heated through.
FAQs
Here are some frequently asked questions about Garlic Butter Mushrooms & Onions that might help you out!
Can I use different types of mushrooms for Garlic Butter Mushrooms & Onions?
Absolutely! While this recipe uses button mushrooms, you can substitute with your favorite varieties like cremini or shiitake. Each will bring its unique flavor and texture.
How can I make Garlic Butter Mushrooms & Onions healthier?
To lighten the dish, consider reducing the butter or replacing half of it with a plant-based alternative. You can also increase the amount of vegetables by adding bell peppers or spinach.
What should I serve with Garlic Butter Mushrooms & Onions?
These flavorful mushrooms make a great side dish! Serve them alongside grilled chicken, fish, or as part of a vegetarian meal with grains like quinoa or rice.
Final Thoughts
I hope you find joy in making these Garlic Butter Mushrooms & Onions! This recipe not only brings warmth and comfort to your table but also offers versatility for any meal. Whether you’re enjoying them on their own or pairing them with other dishes, I’m sure they’ll become a favorite in your home. Happy cooking, and don’t forget to share your creations!
Garlic Butter Mushrooms & Onions
Garlic Butter Mushrooms & Onions is a quick and flavorful side dish that will elevate any meal. Packed with earthy mushrooms and sweet caramelized onions, this dish is enriched with a buttery garlic sauce that creates an irresistible aroma in your kitchen. Perfect for busy weeknights or special family gatherings, it can be prepared in just 25 minutes, making it both convenient and delicious. Versatile enough to pair with grilled chicken, fish, or as part of a vegetarian feast, this recipe will quickly become a favorite on your dinner table!
- 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 or crushed)
- 1 medium onion (minced)
- 1/2 cup chicken stock or white grape juice
- Zest from 1 medium lemon
- 1 tablespoon lemon juice
- 4 tablespoons butter (divided)
- Chopped parsley for garnish
- Salt and pepper to taste
Instructions
- Clean the mushrooms, trimming any dried-out stems if necessary.
- 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, then the minced onions and garlic. Cook until onions are caramelized, another 3-5 minutes.
- Pour in chicken stock or grape juice along with lemon zest, lemon juice, and chili flakes. Cook for about 2 minutes to reduce the liquid slightly.
- Stir in the remaining butter and chopped parsley, seasoning with salt and pepper to taste. Serve warm.
Nutrition
- Serving Size: 1 cup (150g)
- Calories: 120
- Sugar: 2g
- Sodium: 300mg
- Fat: 10g
- Saturated Fat: 4g
- Unsaturated Fat: 6g
- Trans Fat: 0g
- Carbohydrates: 8g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 15mg
