The aroma of a freshly baked Creamy Green Bean and Mushroom Casserole wafts through the kitchen, beckoning everyone to gather around the table. Picture this: creamy sauce enveloping tender green beans and savory mushrooms, a crunchy topping that adds just the right amount of texture. This dish isn’t just a side; it’s the star of any gathering, bringing warmth and comfort with every bite.

Jump to:
- <strong>Essential Ingredients</strong>
- <strong>How to Make Creamy Green Bean and Mushroom Casserole</strong>
- <strong>Perfecting the Cooking Process</strong>
- <strong>Add Your Touch</strong>
- <strong>Storing & Reheating</strong>
- <strong>FAQ</strong>
- Can I make this casserole ahead of time?
- What if I don’t have fresh green beans?
- How can I make this recipe gluten-free?
- 📖 Recipe Card
Remember those holiday dinners where Grandma would whip up her famous casserole? The laughter, the stories shared, and the satisfying crunch of that golden topping—it’s a memory I cherish. Now, whether it’s Thanksgiving or a casual family dinner, this delightful dish is bound to steal the show and turn any meal into an occasion worth celebrating.
Why You'll Love This Recipe
- This Creamy Green Bean and Mushroom Casserole is simple enough for a weeknight dinner yet impressive for special occasions
- The rich flavors blend beautifully while maintaining a light texture
- Its vibrant green color adds visual appeal to any plate, making it irresistible
- Plus, you can easily adjust ingredients based on what you have in your pantry to suit your taste
I once made this casserole for my friends’ potluck dinner. The moment they tasted it, their eyes lit up, and I think one even dropped their fork in disbelief at how delicious it was!
Essential Ingredients
Here’s what you’ll need to make this delicious dish:
Fresh Green Beans: Choose crisp green beans for crunch; they bring freshness and balance to the creamy sauce.
Mushrooms: Opt for button or cremini mushrooms; their earthy flavor enhances the casserole’s richness.
Heavy Cream: Adds silkiness; feel free to substitute with half-and-half for a lighter version.
Onion: Use yellow onion for sweetness; sauté until translucent to release its natural sugars.
Garlic: Fresh garlic cloves provide aromatic depth; always chop them just before use for maximum flavor.
Breadcrumbs: Use seasoned breadcrumbs for extra flavor on top; they create that delightful crunchy layer we all love.
Cheddar Cheese: Sharp cheddar melts beautifully; it intensifies the creaminess and adds a rich flavor profile.
Olive Oil or Butter: Essential for sautéing veggies; both options add wonderful flavor, so pick your preference!
Salt and Pepper: Don’t forget these staples! They enhance all flavors and should be adjusted according to taste.
The full ingredients list, including measurements, is provided in the recipe card directly below.

How to Make Creamy Green Bean and Mushroom Casserole
Preheat Your Oven: Start by preheating your oven to 350°F (175°C). This ensures an evenly baked casserole with bubbly edges when it’s done.
Sauté the Vegetables: In a large skillet over medium heat, add olive oil or butter. Once hot, toss in diced onion and minced garlic until fragrant—about two minutes gives you that heavenly aroma!
Add Mushrooms: Next, stir in sliced mushrooms. Sauté until they soften and turn golden brown—this usually takes about five minutes. Enjoy watching those mushrooms release their juices!
Mix Green Beans: Now it’s time for our star ingredient! Add fresh green beans into the skillet along with salt and pepper. Stir well and cook until they’re bright green yet still crisp—around three minutes will do!
Create the Creamy Sauce: Pour in heavy cream while stirring gently to combine all ingredients evenly. Let everything simmer together until bubbling slightly—this usually takes about three more minutes.
Add Cheese & Topping: Sprinkle shredded cheddar cheese over the mixture followed by breadcrumbs. Bake in your preheated oven for 25-30 minutes until golden brown on top—keep an eye out for that glorious crust!
Now you have a delectable Creamy Green Bean and Mushroom Casserole ready to impress at your next meal!
You Must Know
- The creamy green bean and mushroom casserole is comfort food at its finest
- This dish combines earthy mushrooms with crispy green beans, creating a delightful symphony of textures and flavors
- The aroma wafting from the oven will have everyone gathering around the table in anticipation
Perfecting the Cooking Process
Start by sautéing the mushrooms until they’re golden brown, then add your green beans and sauce. This ensures everything cooks evenly and creates that rich, tasty flavor.
Add Your Touch
Feel free to swap in different veggies like broccoli or peas for added color. You can also sprinkle some crispy fried onions on top for an extra crunch.
Storing & Reheating
Store leftovers in an airtight container in the fridge for up to three days. Reheat in the oven at 350°F until warmed through for best results.
Chef's Helpful Tips
- To achieve maximum creaminess, use a combination of sour cream and cream of mushroom soup
- Avoid overcooking the green beans; they should stay slightly crunchy for texture
- Always season generously with salt and pepper to enhance overall flavor
Sharing this dish with friends during our annual potluck made me realize how much joy food brings us together. The laughter and compliments were worth every minute spent making it!
FAQ
Can I make this casserole ahead of time?
Yes, you can prepare it a day in advance and bake before serving.
What if I don’t have fresh green beans?
Frozen green beans work perfectly as a convenient alternative; just thaw them before use.
How can I make this recipe gluten-free?
Use gluten-free cream of mushroom soup or make your own with cornstarch as a thickener.
Did You Enjoy Making This Recipe? Please rate this recipe with ⭐⭐⭐⭐⭐ or leave a comment.
📖 Recipe Card
Print
Creamy Green Bean and Mushroom Casserole
- Total Time: 45 minutes
- Yield: Serves 6
Description
Creamy Green Bean and Mushroom Casserole is a comforting dish that brings together tender green beans and earthy mushrooms in a rich, creamy sauce, topped with a golden, crunchy layer. Perfect for holidays or weeknight dinners, this casserole will delight your family and friends with its nostalgic flavors and inviting aroma.
Ingredients
- 1 lb fresh green beans, trimmed
- 8 oz button or cremini mushrooms, sliced
- 1 cup heavy cream (or half-and-half)
- 1 medium yellow onion, diced
- 3 cloves garlic, minced
- 1 cup seasoned breadcrumbs
- 1 cup sharp cheddar cheese, shredded
- 2 tbsp olive oil or butter
- Salt and pepper to taste
Instructions
- Preheat your oven to 350°F (175°C).
- In a skillet over medium heat, add olive oil or butter. Sauté diced onion and minced garlic until fragrant.
- Add sliced mushrooms and cook until softened and golden brown.
- Stir in fresh green beans with salt and pepper; cook until bright green yet crisp for about 3 minutes.
- Pour in heavy cream and simmer until bubbling.
- Mix in shredded cheddar cheese and top with breadcrumbs.
- Bake for 25-30 minutes or until the topping is golden brown.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Category: Side dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 cup (200g)
- Calories: 280
- Sugar: 2g
- Sodium: 480mg
- Fat: 20g
- Saturated Fat: 10g
- Unsaturated Fat: 8g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 4g
- Protein: 8g
- Cholesterol: 40mg





