Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe

Name: Irresistible Mushroom and Brussels Sprouts Au Gratin
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 1 lb Brussels sprouts, trimmed and halved; 8 oz fresh mushrooms (cremini or button), sliced; 1 cup heavy cream; 2 cloves garlic, minced; 1 cup grated Gruyère cheese; 1/2 cup grated Parmesan cheese; 1/2 cup breadcrumbs (plain or seasoned); 2 tbsp butter, melted; Salt and pepper to taste

Published: January 7, 2026

by Mia

Why You'll Love This Recipe

This dish is super easy to prepare, making it a weeknight favorite.
The rich flavors create a delightful harmony between earthy mushrooms and crisp Brussels sprouts.
Visually stunning with its golden top, it’ll impress anyone at your table.
It’s versatile enough to serve as a side or main event on your dinner plate.

Ingredients for Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe

Here’s what you’ll need to make this delicious dish:

Brussels Sprouts: Look for bright green sprouts that are firm and tightly packed. Trim them well before cooking to enhance their flavor.
Fresh Mushrooms: Cremini or button mushrooms work wonderfully here; they add great depth of flavor when sautéed.
Heavy Cream: This gives the au gratin its decadent creaminess. Go for full-fat for the best results.
Grated Cheese: A mix of Gruyère and Parmesan provides a rich flavor profile and creates that beautiful golden crust.
Breadcrumbs: Use plain or seasoned breadcrumbs for an irresistible crunchy topping.
Garlic: Fresh garlic cloves will elevate the dish with aromatic goodness. Don’t skimp on this!
Butter: For sautéing the vegetables and adding richness to the sauce.
Salt and Pepper: Essential seasonings to enhance all those yummy flavors!

The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe

Follow these simple steps to prepare this delicious dish:

Step 1: Preheat Your Oven

Preheat your oven to 375°F (190°C). This ensures a perfectly baked au gratin with a crispy top.

Step 2: Prepare Your Veggies

Trim the Brussels sprouts by cutting off any brown ends and slicing them in half. Clean your mushrooms by wiping them down with a damp cloth—no washing needed!

Step 3: Sauté the Vegetables

In a large skillet over medium heat, melt about two tablespoons of butter. Add minced garlic followed by the sliced mushrooms and Brussels sprouts. Sauté until they are tender—about seven minutes—and season with salt and pepper.

Step 4: Make the Creamy Sauce

In a bowl, whisk together heavy cream with half of your grated cheese (save some for topping). Pour this mixture over your sautéed vegetables in the skillet.

Step 5: Assemble in Baking Dish

Transfer everything into a greased baking dish. Evenly sprinkle breadcrumbs over the top along with the remaining cheese. This will create that mouthwatering crust we all love!

Step 6: Bake It Up

Pop it into your preheated oven for about 25-30 minutes or until bubbly and golden brown on top. The anticipation will be worth it!

Transfer to plates and drizzle any leftover cream mixture for that perfect finishing touch.

Now you’ve created an Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe that not only pleases but also impresses! Serve it alongside roasted chicken or simply enjoy it as a warm hug on a plate. Happy cooking!

You Must Know

This Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe offers a delightful blend of flavors and textures.
It’s the perfect side dish that elevates any meal, with creamy cheese and nutty mushrooms dancing together in harmony.
Plus, it’s easy to whip up, even on a busy weeknight!

Perfecting the Cooking Process

Start by preheating your oven to 375°F (190°C). Sauté the mushrooms and Brussels sprouts until tender before layering them in a baking dish. Whisk together cream, garlic, and cheese for a luscious sauce to pour over. Finally, bake until bubbly and golden.

Add Your Touch

Feel free to swap the Brussels sprouts for broccoli or cauliflower if you’re feeling adventurous. Add some crispy bacon or ham for an extra savory kick. Experiment with different cheeses like Gruyère or cheddar to customize the flavor profile.

Storing & Reheating

Store leftovers in an airtight container in the fridge for up to three days. To reheat, place in an oven at 350°F (175°C) until warmed through, about 15 minutes. You can also microwave individual portions for quick enjoyment.

Chef's Helpful Tips

Use fresh Brussels sprouts and quality mushrooms for the best flavor experience.
Ensure your cream mixture is well-seasoned before pouring it over the vegetables.
Don’t skip the bubbling cheese on top; it’s what makes this dish irresistibly delicious!

I remember making this Irresistible Mushroom and Brussels Sprouts Au Gratin for a family gathering last winter. Everyone went back for seconds, claiming it was their favorite dish of the night! It’s always heartwarming to see smiles around the dinner table.

FAQs:

What is the main ingredient in the Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe?

The main ingredients for this delicious dish are fresh mushrooms and Brussels sprouts. These vegetables not only provide a rich flavor but also contribute to the creamy texture of the au gratin. The recipe typically includes a blend of cheeses, cream, and seasonings that enhance the overall taste. By combining these ingredients, you create a comforting side dish perfect for any occasion.

How long does it take to prepare the Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe?

Preparation for the Irresistible Mushroom and Brussels Sprouts Au Gratin takes about 15 to 20 minutes. Cooking time will vary, but expect it to take around 30 to 40 minutes in the oven. Overall, you can have this delectable side dish ready in under an hour, making it a quick yet impressive addition to your meal.

Can I make adjustments to the Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe?

Yes, you can definitely customize the Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe according to your taste. Feel free to experiment with different types of cheese or add herbs like thyme or rosemary for extra flavor. You may also substitute other vegetables if desired, such as cauliflower or spinach, while still maintaining the creamy richness that characterizes this dish.

Is the Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe suitable for vegetarians?

Absolutely! The Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe is perfect for vegetarians as it features only vegetables, cheese, and cream. This dish offers a hearty option without any meat. It’s also an excellent way to enjoy nutritious veggies in a comforting format that everyone will love.

Conclusion for Irresistible Mushroom and Brussels Sprouts Au Gratin Recipe:

In summary, the Irresistible Mushroom and Brussels Sprouts Au Gratin is an easy-to-make dish that combines rich flavors with creamy textures. With simple ingredients like fresh mushrooms and Brussels sprouts, this recipe delivers comfort food at its finest. Whether served as a side at dinner parties or holiday gatherings, it’s sure to impress everyone at your table. Try this delightful recipe today for a satisfying meal experience!

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