Rating: 4.5 stars
188 Ratings
  • 5 star values: 137
  • 4 star values: 30
  • 3 star values: 10
  • 2 star values: 8
  • 1 star values: 3

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

Recipe Summary

prep:
45 mins
cook:
45 mins
total:
1 hr 30 mins
Servings:
10
Yield:
10 servings
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Ingredients

10
Original recipe yields 10 servings
The ingredient list now reflects the servings specified
For the onions:
For the white sauce:
For the topping:

Directions

Instructions Checklist
  • Preheat oven to 375 degrees F (190 degrees C). Grease a 9x13 inch casserole dish.

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  • 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

217 calories; protein 9.4g; carbohydrates 18.9g; fat 13g; cholesterol 38mg; sodium 195mg. Full Nutrition
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