Modern Green Bean Casserole

Modern Green Bean Casserole

This is not your average green bean casserole. It has all the flavors you love from this classic side, but brought to new heights.


1½ lbs fresh green beans, cut into 3-inch pieces, blanched

2 Tbsp unsalted butter

2 cloves garlic, finely minced

1 small yellow onion, finely chopped

8 oz brown mushrooms, cleaned and sliced ¼-inch-thick

2 tsp chopped fresh thyme leaves

Salt and freshly ground pepper, to taste


For the Sauce:

4 Tbsp unsalted butter

¼ cup all-purpose flour

2 cups whole milk

1 tsp salt


For the Topping:

1 Tbsp unsalted butter

1 Tbsp DLM Extra-Virgin Olive Oil

Scant ½ cup sliced shallots

½ cup fresh white bread breadcrumbs

Salt and freshly ground pepper, to taste


Preheat oven to 350°F.

Blanch the green beans and plunge into an ice bath to halt the cooking process. Drain when the beans are no longer hot. In a large sauté pan, melt the butter. Add the garlic and onion and sauté over medium-low heat until softened. Add the mushrooms and thyme and cook until mushrooms are tender and have released their juices. Season to taste with the salt and pepper.

In a heavy saucepan, melt the butter and whisk in flour. Cook for a minute or two to remove the rawness of the flour. Whisk in milk, about ½ cup at a time, until the sauce is smooth. Add salt and cook, stirring often, until sauce is thick enough to coat a spoon.

Heat butter and olive oil in a sauté pan over medium-high heat. Add the sliced shallots and cook until soft and beginning to turn golden, 3 to 4 minutes. Add the breadcrumbs and stir to coat. Season with salt and pepper.

To assemble: In a large bowl add the green beans and the mushroom mixture and stir to combine. Pour the sauce over all and stir until well-combined. Transfer mixture to a large buttered gratin or casserole dish. Smooth the top and sprinkle evenly with the breadcrumb mixture. Bake for about 25 minutes or until the cream sauce is bubbly and the breadcrumbs are golden.

4 comments on “Modern Green Bean Casserole

  • It is quite simply the best recipe for green bean casserole I’ve ever tried. My quest is done, and I’ll never change from this recipe.

  • Yay! I am so glad you like it.
    I have to make it every year for my daughter who has shared this recipe to so many people I’ve lost count!
    Happy holidays!
    -Chef Carrie

  • Can it be prepared ahead, put in the refrigerator, then heated later at dinner time?
    How best to do. It’s a great recipe!!

    1. Hi Roy! Here’s a note from Chef Carrie:
      It can be prepared ahead of time.
      1-2 days in advance refrigerated and then cooked according to directions.
      I have not tried it from frozen. The quality of the green bean texture would suffer a bit.
      Glad you like the recipe! It’s on my menu every year.
      Best regards-

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