FRENCH ONION GREEN BEAN CASSEROLE

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French Onion Green Bean Casserole image

The iconic green bean casserole is reworked with the flavors of French onion soup -- caramelized onions and Gruyere cheese.

Provided by Chef John

Categories     Side Dish     Casseroles     Green Bean Casserole Recipes

Time 1h30m

Yield 10

Number Of Ingredients 15

2 tablespoons butter
2 large yellow onions, thinly sliced lengthwise
salt and ground black pepper to taste
1 tablespoon sherry vinegar
2 tablespoons butter
2 ½ tablespoons all-purpose flour
2 ½ cups milk
1 pinch ground nutmeg
1 pinch cayenne pepper to taste
¼ teaspoon ground thyme
2 tablespoons melted butter
⅔ cup panko bread crumbs
2 pounds fresh green beans, trimmed
4 ounces shredded Gruyere cheese, divided
⅓ cup grated Parmesan cheese

Steps:

  • Preheat oven to 375 degrees F (190 degrees C). Grease a 9x13 inch casserole dish.
  • Heat 2 tablespoons of butter in a large skillet over medium heat. Stir the onions into the pan; cook and stir until very soft and golden brown, about 15 minutes. Stir in sherry vinegar. Transfer to a small bowl, and reserve.
  • In the same skillet, melt 2 more tablespoons butter. Whisk in 2 tablespoons flour. Stirring constantly, cook over medium heat until the flour smells like baked pie crust, about 3 minutes. Slowly whisk in milk, about 1/2 cup at a time, then whisk in nutmeg, cayenne pepper, and thyme. Bring to simmer, and cook until thickened, whisking constantly, 3 more minutes. Transfer to a bowl and reserve.
  • Melt remaining 2 tablespoons butter in clean skillet; stir in panko until all crumbs are coated; reserve.
  • Bring a large saucepan of salted water to a boil over medium heat, and boil beans until bright green and crisp but not raw tasting, 3 to 4 minutes. Drain very well.
  • Spoon half of the caramelized onions into the prepared casserole dish; top with green beans. Season with salt and black pepper. Spread reserved white sauce over the green beans; sprinkle with half of the Gruyere cheese. Top with the rest of the onions, and use the back of a spoon to push onions down into sauce and cheese. Top with the buttered panko crumbs, the remaining Gruyere, and Parmesan cheese.
  • Bake in the preheated oven until hot throughout and lightly browned, about 30 minutes. Let sit 10 minutes before serving.

Nutrition Facts : Calories 216.5 calories, Carbohydrate 18.9 g, Cholesterol 38 mg, Fat 13 g, Fiber 3.7 g, Protein 9.4 g, SaturatedFat 7.9 g, Sodium 195 mg, Sugar 5.5 g

TrinkyDoo
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I'm so glad I found this recipe. It's a new family favorite!


Harun Yare
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This casserole is a great way to get your kids to eat their vegetables.


Dave Crowley
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I froze the leftovers of this casserole and it reheated well.


Sameer mauje
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This casserole is a great make-ahead dish. You can assemble it the night before and bake it the next day.


Osmaan Antoni boy
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I love the crispy onion topping on this casserole. It adds a nice crunch and flavor.


Brandon Watson
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I added a cup of cooked rice to this casserole and it made it even more hearty and filling.


N Ja
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This casserole is a great way to use up leftover green beans.


Pepper Squat
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I used a gluten-free cream of mushroom soup and the casserole turned out great. This recipe is a keeper!


Jessy k Robins
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I'm not a fan of mushrooms, so I omitted them from the recipe. The casserole was still delicious.


Syed amir Bukhari
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This is the best green bean casserole recipe I've ever tried. It's so flavorful and creamy.


RONI HOSSAIN
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I made this casserole for a potluck and it was a huge success. Everyone loved it!


Rue Tiriwawi
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I'm a vegetarian, so I used vegetable broth instead of chicken broth. The casserole still turned out great!


Mfchaos4lifel 93
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I added some crumbled bacon to this casserole and it was amazing! The bacon added a smoky flavor that really took the dish to the next level.


Kum Brandon
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I love that this recipe uses fresh green beans instead of canned. It makes a big difference in the flavor and texture of the dish.


mina Gotami
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This is a great recipe for a weeknight meal. It's quick and easy to make, and it's always a crowd-pleaser.


Addisyn Morgan
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I'm not a huge fan of green bean casserole, but this recipe changed my mind. The French onion soup mix adds a delicious savory flavor that really elevates the dish.


Asif2002 Don
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This casserole was a hit with my family! The flavors of the French onion soup mix and the green beans paired perfectly. I will definitely be making this again.