Ingredients:

Green beans Salted butter Gresh cremini mushrooms Shallot Garlic See Recipe

Preheat oven to 350°F degrees and grease a 9×13 casserole dish. To a large dutch oven, melt butter over medium-high heat.

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Add mushrooms and shallot, and cook until mixture is brown and caramelized. Add garlic and stir quickly to avoid burning.

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Transfer the mixture to a plate, and do not wipe or rinse your dutch oven. Add butter over medium-high heat.

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Add flour, whisking constantly. Then, gradually add in milk and whisk until smooth.

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Continue cooking until the flour, milk, and butter thicken and begin to bubble – about 5 minutes.

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Green Bean Casserole from Scratch

Make a delicious green bean casserole from scratch! It’s the perfect side dish for Thanksgiving or Christmas dinner.

This comforting Southern side dish is made with a creamy mushroom sauce, canned green beans, and topped with crispy fried onions.