Green Bean Casserole

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This saucy, bubbling casserole is a lighter, from-scratch take on the classic side.

Prep Time:
25 mins
Cook Time:
40 mins
Total Time:
1 hr 5 mins
Servings:
8

Shake up your Thanksgiving menu with this fresh green bean casserole. In our rendition, the traditional canned soup and store-bought crispy onions are replaced with a savory homemade mushroom sauce and golden, lightly fried shallots. We lean on fresh green beans instead of frozen, which turn bright green after a quick boil in salted water and retain just a bit of bite for plenty of pleasing texture. After a short stint in the oven, all that’s left is to shower the casserole with a few handfuls of crispy shallots before this saucy, bubbling delight is ready to hit the table. Filled with homemade touches—but not fussy in the least—this fresh take on a classic may just become a new holiday tradition.

Green Bean Casserole

Brie Goldman

Dos and Don'ts for Making Fresh Green Bean Casserole

Don't overcook your beans: One of the highlights of this easy side dish is the color, flavor, and texture of the green beans themselves. To maintain that brightness, be sure to not overcook the beans while boiling them in step three. Since the beans will continue to cook in the oven, it’s important to pull them out of the water when they’re crisp tender and not fully softened, which should take about six minutes. 

Do use an ice bath: Have an ice bath—or cold running water—ready to shock the green beans right when they come out of the boiling water, which will stop the cooking process. Skipping this step can result in mushy, overcooked beans.

Do watch your shallots carefully: When frying the shallots, it’s important to keep a close eye on them as they can go from lightly browned to overly dark in a short amount of time. Use a slotted spoon to keep them moving, which you can also use to remove them to the oil to drain.

Don't rush the mushrooms: The key to getting the most flavor out of the mushrooms—which will give you an ultra savory sauce to bathe the green beans in—is to cook them slowly in butter until they release their moisture and become deliciously concentrated in flavor. Take your time cooking them, waiting to add the flour and stock until they are beautifully browned and tender.

How to Make Green Bean Casserole Ahead

From the crispy shallots and mushroom sauce to the green beans themselves, we've got easy ways to prep this dish ahead to save you time and energy on the big day:

  • Two days ahead: Cook and shock the green beans, then pat them dry and refrigerate in a resealable bag. Fry the shallots and let cool completely, then store them at room temperature in an airtight container lined with paper towels.
  • One day ahead: Make the mushroom sauce and let it cool. Transfer to a lidded container and press a piece of plastic wrap directly onto the surface of the sauce to keep it from forming a skin, then cover. Reheat the sauce, either on the stovetop or in the microwave, before tossing with the beans.

If you have a mandoline, it will make quick work of slicing the shallots. If not, be sure to use a sharp chef's knife and take your time while cutting to achieve thin, even rings.

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Ingredients

  • 3 cups vegetable oil

  • 6 large shallots, cut into very thin rounds, rings separated

  • 1 ½ cups all-purpose flour

  • Coarse salt and ground pepper

  • 2 pounds green beans, trimmed and halved

  • ¼ cup (½ stick) unsalted butter

  • 1 pound button mushrooms, trimmed and coarsely chopped

  • 14 ½ ounces low-sodium chicken broth

  • 1 cup whole milk

Directions

Green Bean Casserole Ingredients

Brie Goldman

  1. Preheat oven; heat oil and coat shallots:

    Preheat oven to 425°F. In a large skillet, heat oil over medium. Line a baking sheet with paper towels. In a large bowl, toss together shallots and 1 1/4 cups flour until shallots are evenly coated.

    Green Bean Casserole

    Brie Goldman

  2. Fry shallots; transfer to prepared sheet to drain:

    In batches, shake off excess flour from shallots and fry until golden and crisp, about 5 minutes, adjusting heat if shallots are browning too quickly. With a slotted spoon, transfer to sheet and season with salt. Set aside.

    Green Bean Casserole

    Brie Goldman

    Don't toss the flour after dredging the shallots; you can use one-quarter cup of it to thicken the mushroom sauce (and even your gravy!).

  3. Cook beans, then shock or rinse to cool; pat dry:

    In a large pot of boiling salted water, cook green beans until crisp-tender, 6 minutes. Drain and rinse with cold water to stop the cooking. Pat dry.

    Green Bean Casserole

    Brie Goldman

  4. Cook mushrooms; stir in flour:

    In a large saucepan, melt butter over medium-high. Add mushrooms and cook until liquid has evaporated, about 7 minutes. Season with salt and pepper. Add 1/4 cup flour and cook, stirring, until incorporated, about 1 minute.

    Green Bean Casserole

    Brie Goldman

  5. Whisk in broth and simmer until thickened;

    Whisking constantly, gradually add broth, then milk. Bring to a simmer. Cook, stirring occasionally, until sauce thickens, about 5 minutes. Season with salt and pepper. Reheat before using.)

    Green Bean Casserole

    Brie Goldman

  6. Toss beans with sauce; transfer to pan and bake, then top with shallots:

    Add green beans to mushroom sauce and toss to coat. Transfer mixture to a 9-by-13-inch baking dish. Bake until bubbling around edges, about 15 minutes. Serve topped with fried shallots.

    Green Bean Casserole

    Brie Goldman

    Green Bean Casserole

    Brie Goldman

How to Store Leftover Green Bean Casserole

Leftover green bean casserole can be refrigerated in an airtight container for up to four days. Reheat in a 400 degree Fahrenheit oven until heated through and shallots are crispy, 10 to 15 minutes.

Variations

Other Mushrooms: In place of the button mushrooms, you can use cremini or shiitake mushrooms.

A richer, creamier sauce: Replace the milk with half-and-half or heavy cream.

Frozen beans: In a pinch, you can use frozen, french-cut green beans instead of fresh; be sure to thaw them well and pat thoroughly dry before tossing with the mushroom sauce.

Other Green Bean Recipes to Try:

Originally appeared: Everyday Food, November 2009
Updated by
Esther Reynolds
Headshot of Esther Reynolds
Esther Reynolds is an experienced recipe developer, recipe tester, food editor, and writer with over a decade of experience in the food and media industries.

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