Introduction

Green Bean Casserole is a classic comfort food that brings together tender green beans, creamy mushroom sauce, and crispy fried onions. It’s a perfect side dish for holidays or any family meal, offering both creamy texture and a satisfying crunch.

The image shows a close-up of a green bean casserole in a white rectangular baking dish. The casserole has a layer of bright green beans mixed with light brown cooked onions and sliced beige mushrooms, all covered with crispy golden brown fried onions. A wooden spoon is scooping some of the casserole from the corner, lifting up a mix of green beans, mushrooms, and crispy onions. The dish is placed on a white marbled surface with a green cloth partly visible underneath. Photo taken with an iphone --ar 4:5 --v 7

Ingredients

1.5 lb (700 g / 17.5 oz) fresh green beans, ends removed
3 cups (700 ml / 24 fl oz) broth (chicken or vegetable)
3 tbsp butter, divided
8 oz (225 g) button mushrooms, sliced
1 onion, chopped (yellow or white)
1 can (10.5 oz / 300 g) cream of mushroom soup
1/3 cup (75 g / 1.5 oz) shredded cheddar cheese
1/2 tsp salt
1/2 tsp ground black pepper
2 tsp garlic powder
2 cups (100 g / 3.5 oz) French fried onion rings

Instructions

Step 1: Preheat your oven to 350°F (180°C). Grease a 2-quart casserole dish with 1 tablespoon of butter or non-stick spray and set aside.
Step 2: Place the green beans and broth in a medium pot and bring to a boil over medium-high heat. Cook for about 8 minutes until the beans are tender, then drain. For softer beans, cook 10 to 12 minutes.
Step 3: Melt the remaining 2 tablespoons of butter in a large skillet over medium heat. Add mushrooms and onion and sauté for 4 to 5 minutes until tender. Remove from heat.
Step 4: In a large bowl, combine the drained green beans, sautéed mushrooms and onion, cream of mushroom soup, cheddar cheese, garlic powder, salt, and pepper. Mix well.
Step 5: Pour the mixture into the prepared casserole dish and spread evenly. Top with the French fried onion rings.
Step 6: Bake for 15 to 20 minutes until heated through and bubbly. Let cool for 5 minutes before serving.

Tips & Variations

For extra flavor, add a splash of soy sauce or Worcestershire sauce to the mushroom mixture before assembling.
Use fresh fried onions if available, or bake store-bought crispy onions uncovered for a few minutes to restore crunch.
Substitute sharp white cheddar for a tangier taste or mix in some grated Parmesan for depth.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F (180°C) until warmed through to keep the casserole bubbly and the topping crispy.

How to Serve

A white plate sits on a white marbled surface, filled with a layered mix of green beans and sliced mushrooms. The green beans are bright green and firm, arranged in a loose pile across the plate. Interspersed are thinly sliced mushrooms with white edges and brown centers, adding texture and contrast. A light, creamy white sauce is drizzled unevenly over the vegetables, pooling slightly in some areas. Small bits of golden-brown fried onions are scattered on top, adding a crunchy texture. A golden fork rests on the right side of the plate, partially touching the food. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use frozen green beans instead of fresh?

Yes, frozen green beans work well. Defrost and drain them before using, and reduce the blanching time since they are partially cooked.

Can I prepare this casserole in advance?

Absolutely. Assemble the casserole up to 24 hours ahead, cover and refrigerate, then bake it before serving. Add the fried onions just before baking to maintain their crispiness.

Green Bean Casserole Recipe

Print Recipe

★★★★★

4.9 from 70 reviews

A classic Green Bean Casserole recipe featuring fresh green beans simmered in savory broth, combined with sautéed mushrooms and onions, creamy mushroom soup, and topped with crispy French fried onion rings, baked to golden perfection. This comforting dish is perfect for family dinners and holiday gatherings.

Author: Marco
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes
Yield: 6 servings 1x
Category: Side Dish
Method: Baking
Cuisine: American
Diet: Vegetarian

Ingredients

Scale

Vegetables and Fresh Ingredients

1.5 lb / 700 g / 17.5 oz fresh green beans, ends removed
8 oz / 225 g button mushrooms, sliced
1 onion, chopped (yellow or white)

Liquids and Dairy

3 cups / 700 ml / 24 fl oz broth (e.g., chicken broth or veggie broth)
3 tbsp butter, divided
1 can (10.5 oz / 300 g) cream of mushroom soup
1/3 cup / 75 g / 1.5 oz freshly shredded cheddar cheese

Seasonings and Toppings

1/2 tsp salt
1/2 tsp ground black pepper
2 tsp garlic powder
2 cups / 100 g / 3.5 oz French fried onion rings

Instructions

Prepare for baking. Preheat your oven to 350°F (180°C / gas mark 4). Grease a 2-quart casserole dish with 1 tablespoon of butter or use non-stick cooking spray to ensure the casserole doesn’t stick. Set the dish aside.
Blanch green beans. Place the fresh green beans and broth in a medium-sized pot. Bring it to a boil over medium-high heat. Cook the beans for about 8 minutes until they are tender yet crisp. For softer beans, you may cook them for up to 12 minutes. Once done, drain the beans thoroughly.
Sauté mushrooms and onions. While the beans are cooking, melt the remaining 2 tablespoons of butter in a large non-stick pan or skillet over medium heat. Add the sliced mushrooms and chopped onion, sautéing them for 4 to 5 minutes until they are just tender and fragrant. Remove the pan from heat and set aside.
Assemble casserole. In a large mixing bowl, combine the drained green beans, sautéed mushrooms and onions, cream of mushroom soup, shredded cheddar cheese, garlic powder, salt, and black pepper. Mix everything thoroughly to ensure the flavors are evenly distributed. Pour the mixture into the prepared casserole dish and spread it out evenly. Finally, sprinkle the French fried onion rings on top to create a crispy topping.
Bake. Place the casserole in the preheated oven and bake for 15 to 20 minutes. Bake until the dish is heated through, bubbly, and the onion topping is golden brown.
Serve. Remove the casserole from the oven and let it cool for about 5 minutes to allow it to set. Serve warm and enjoy this comforting and flavorful dish.

Notes

You can use either chicken broth or vegetable broth depending on your preference or dietary needs.
For a vegetarian version, use vegetable broth and ensure the cream of mushroom soup is vegetarian-friendly.
Feel free to use green beans from frozen if fresh are unavailable, but reduce blanching time accordingly.
The French fried onion rings add crunch; you can substitute with homemade crispy onions if desired.
Adjust seasoning to taste, especially salt and pepper, depending on the saltiness of your broth and cream soup.
This casserole can be prepared a day ahead; assemble but bake just before serving.

Keywords: green bean casserole, vegetable casserole, mushroom casserole, holiday side dish, baked green beans, comfort food