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How to Make Alton Brown's Green Bean Casserole

Fresh mushrooms and green beans are key to Alton's popular Thanksgiving side dish.

HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf,HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Alton's Best-Ever Green Bean Casserole    

Fresh mushrooms and green beans are key to Alton's popular Thanksgiving side dish.
get the recipe

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Combine Onions with Seasoning

Preheat the oven to 475 degrees F. Put the onions, flour, panko and salt in a large mixing bowl and toss to combine. 

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Bake the Onions

Coat a sheet pan with nonstick cooking spray and evenly spread the onions on the pan. Then, place the pan on the middle rack of the oven and bake until golden brown, approximately 30 minutes. Toss the onions 2 to 3 times during cooking. Once done, remove from the oven and set aside until ready to use. Turn the oven down to 400 degrees F.

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Prepare the Beans

While the onions are cooking, prepare the beans. Bring a gallon of water and 2 tablespoons of salt to a boil in an 8-quart saucepan. Add the beans and blanch for 5 minutes. 

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Drain the Beans

Drain in a colander and immediately plunge the beans into a large bowl of ice water to stop the cooking. Then, drain and set aside.

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Add the Mushrooms

Melt the butter in a 12-inch cast-iron skillet set over medium-high heat. Add the mushrooms, 1 teaspoon salt and pepper and cook, stirring occasionally, until the mushrooms begin to give up some of their liquid, approximately 4 to 5 minutes. After, add the garlic and nutmeg and continue to cook for another 1 to 2 minutes. 

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Sprinkle in Flour

Cook for 1 minute. Add the broth and simmer for 1 minute. Sprinkle the flour over the mixture and stir to combine.

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Cook the Mushrooms

Decrease the heat to medium-low and add the half-and-half. Cook until the mixture thickens, stirring occasionally, approximately 6 to 8 minutes.

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Stir in Onions and Green Beans

Remove from the heat and stir in 1/4 of the onions and all of the green beans. 

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HOW TO MAKE GREEN BEAN CASSEROLE Alton Brown Good Eats/Bean Stalker Food Network Onions, AllPurpose Flour, Panko Bread Crumbs, Salt, Nonstick Cooking Spray, Green Bean, Butter, Mushrooms, Black Pepper, Garlic, Nutmeg, Chicken Broth, HalfandHalf
Photo: Matt Armendariz ©
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Bake and Serve

Top with the remaining onions. Place in the oven and bake until bubbly, for approximately 15 minutes. Remove and serve immediately.

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