A cheesy take on the classic green bean casserole. This side dish is layered with creamy green beans, melty Swiss cheese, and crispy fried onions.

Cheesy Green Bean Casserole in Baking Dish

While we love a classic green bean casserole, we also love to switch things up from time to time. This cheesy green bean casserole is a delicious alternative and has become a favorite for our Thanksgiving and Christmas dinners.

The flavor is rich and creamy, and the fried onions give it a deliciously familiar taste because they are also used to top the traditional green bean casserole.

Ingredients for This Green Bean Casserole

Here are the simple ingredients you’ll need for this delicious side dish.

Ingredients for Swiss Cheese Green Bean Casserole
  • 2 tablespoons butter – unsalted. (If you only have salted, that’s okay; you can reduce the added salt a bit if you choose.)
  • 2 tablespoons flour – all-purpose flour.
  • 1 teaspoon salt – regular or kosher salt.
  • 1/4 teaspoon pepper – ground black pepper.
  • 1 teaspoon sugar – white granulated sugar.
  • 1 tablespoon onion flakes – dried onion flakes.
  • 1 cup sour cream – regular sour cream.
  • 2 cans of green beans – canned cut green beans or French style.
  • 2 cups grated Swiss cheese – about an 8-ounce block.
  • 1 cup fried onions – crispy fried onions, like French’s.

Do you prefer fresh green beans? You can use fresh green beans instead of canned, but you will want to blanch them before adding them to the sour cream mixture. (To blanch, cook for 5 to 7 minutes in boiling water.)

Supplies & Favorite Tools for Casseroles

  • Medium saucepan
  • Measuring cups and spoons
  • Spoon and rubber spatula
  • 1 1/2 quart baking dish – a shallow baking dish works best.
  • Baking spray
Taking a Scoop Out of Green Bean Casserole with Cheese with a Spoon

How to Make Cheesy Green Bean Casserole

Follow these simple steps to make this Swiss cheese green bean casserole.

1

Preheat oven to 400°F.

Give the oven time to warm up and preheat it to 400 degrees Fahrenheit.

2

Melt butter & add seasonings.

In a medium saucepan, melt the butter. Then, add the flour, salt, black pepper, sugar, and onion. Mix well.

Melting Butter in Sauce Pan

3

Mix in sour cream and cook.

Add the sour cream and mix thoroughly. Cook over medium heat until it becomes thick and bubbly.

Adding Sour Cream to Sauce Pan

4

Fold in green beans.

Add the green beans to the sour cream mixture and carefully stir until all the green beans are coated.

Adding Green Beans to Sour Cream Mixture in Sauce Pan

5

Add to a greased baking dish.

Pour the green bean mixture into a greased 1.5-quart baking dish.

Adding Green Bean Mixture to White Baking Dish

6

Top with cheese & fried onions.

Sprinkle the green bean mix with shredded Swiss cheese. Then top with the french fried onions.

Topping Casserole with Cheese and Onions

7

Bake for 20 minutes.

Place in the oven and bake for 20 minutes at 400 degrees Fahrenheit.

Cooked Cheesy Green Bean Casserole in Baking Dish

8

It’s Done & ready to enjoy!

Once the cheese is melty and the ingredients are heated through, it’s done and ready to enjoy.

Green Bean Casserole (left) Closeup (right)
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Cheesy Green Bean Casserole in Baking Dish

Cheesy Green Bean Casserole

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A cheesy take on the classic green bean casserole. This side dish is layered with creamy green beans, melty Swiss cheese, and crispy fried onions. The perfect side dish for Thanksgiving and Christmas dinners.

  • Total Time: 30 minutes
  • Yield: 1012 servings 1x

Ingredients

Units Scale
  • 2 tbsp butter
  • 2 tbsp flour
  • 1 tsp salt
  • 1/4 tsp pepper
  • 1 tsp sugar
  • 1 tbsp onion flakes
  • 1 cup sour cream
  • 2 cans of green beans
  • 2 cups grated Swiss cheese (8-ounce block)
  • 1 cup crispy fried onions

Instructions

  1. Preheat oven to 400°F.
  2. In a medium saucepan, melt the butter.
  3. Then, add the flour, salt, black pepper, sugar, and onion. Mix well.
  4. Add the sour cream and mix thoroughly.
  5. Cook over medium heat until it becomes thick and bubbly.
  6. Fold in the green beans and stir until coated.
  7. Pour the green bean mixture into a greased 1.5-quart baking dish.
  8. Sprinkle the green bean mix with shredded Swiss cheese.
  9. Then top with the fried onions.
  10. Bake for 20 minutes.
  11. Once the cheese is melty, onions are crispy, and the ingredients are heated through, it’s done and ready to enjoy!

Notes

  • For a larger group, you can double this recipe and use a large baking dish. You will need to adjust the cook time accordingly.
  • Author: Kelsey Restemayer
  • Prep Time: 10 minutes
  • Cook Time: 20 minutes
  • Category: Side Dish
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size:
  • Calories: 169
  • Sugar: 1.3 g
  • Sodium: 268.2 mg
  • Fat: 12.2 g
  • Saturated Fat: 7.1 g
  • Carbohydrates: 7 g
  • Protein: 8 g
  • Cholesterol: 32.3 mg
Recipe Card powered byTasty Recipes

Frequently Asked Questions

Here are answers to commonly asked questions about making this green bean casserole.

Can I use fresh green beans instead of canned ones in this recipe?

Yes, you can use fresh green beans, but make sure to blanch them before adding them to the sour cream mixture for the best results. (To blanch, cook for 5 to 7 minutes in boiling water.)

Is it necessary to use a 1.5-quart baking dish, or can I use a different size?

While a 1.5-quart baking dish is recommended, you can use a different size, but keep in mind that a shallow baking dish works best for the allotted cooking time.

what if I don’t have dried onion flakes?

You can use fresh diced onions. Just sauté them in the butter before adding the seasonings.

Final Notes

Prepare to fall head over heels with this cheesy green bean casserole recipe. It’s a tasty spin on the classic green beans—perfect for holiday meals. The steps are simple, and the ingredients are easy to find. It’s a delightful addition to your holiday menu. We hope you enjoy it!

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Have You Tried This Recipe? Please rate it in the comments and let us know your thoughts!

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2 Comments

    1. Hi Paul, I see where we missed noting when to use the flour, it’s updated now. Thanks for catching that! -Kelsey

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