Make-Ahead Green Bean Casserole

by admin on June 25, 2017

This is an outstanding make-ahead and freeze recipe for a popular Thanksgiving side dish.   This recipe is from the COOK’S Illustrated 2013 Holiday Entertaining.  Serves 10-12.


2 slices white sandwich bread, torn into pieces
2  tablespoons unsalted butter, melted
1/4 teaspoon salt
2  cups canned fried onions


3  tablespoons unsalted butter
10  ounces white mushrooms, trimmed and sliced thin
1  teaspoon salt
1/2  teaspoon pepper
6  garlic cloves, minced
1/2  teaspoon dried thyme
1/4  cup all-purpose flour
1 1/2  cups heavy cream
1 1/2 cups chicken broth
1/2  cup dry white wine
2  pounds green beans, trimmed
1/4  cup cornstarch

1.  For topping:  Pulse bread, melted butter, and salt in food processor, about 6 pulses.  Combine bread crumbs and fried onions in a bowl.  Set aside.

2. For the Casserole:  Melt butter in 12-inch skillet over medium heat.  Add mushrooms, salt, pepper and cook until mushrooms release their liquid, about 5 minutes.  Increase heat to medium-high and cook until liquid has evaporated, about 5 minutes. Add garlic and thyme and cook until fragrant, about 30 seconds.  Stir in flour and cook until golden, about 1 minute.  Slowly whisk in broth, cream and wine and bring to a boil.  Reduce heat to medium and simmer, stirring occasionally, until sauce is thickened, about10 minutes.

3.  Toss green beans with cornstarch in large bowl and transfer to 13X9-inch baking dish.  Pour warm mushroom ixture evenly over green beans.Let cool completely.

4. Transfer topping to zipper-lock freezer bag and freeze for up to 2 months.  Cover baking dish tightly with plastic wrap and then aluminum foil and freeze for up to 2 months.

5.  When ready to serve, adjust oven rack to middle position and heat oven to 400 degrees.  Remove plastic wrap from baking dish and replace foil.  Bake until sauce is bubbling and green beans are tender, about 1 hour and 20 minutes, stirring green beans thoroughly after 50 minutes.  Remove foil and spread topping over green beans.  Bake until golden brown, about 8 minutes. Serve.

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