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Best green bean casserole with silky sauce and crispy onions for the holidays.

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Tender green beans in a silky mushroom sauce topped with crispy fried onions for a classic holiday side.

Ingredients

Scale

2 lb fresh green beans, trimmed and halved (or 2 cans, drained)

2 cups sliced mushrooms

2 tbsp unsalted butter

1 tbsp minced garlic

2 tbsp all-purpose flour

1 cup low-sodium broth (veg or chicken)

1 1/2 cups half-and-half (or 1/2 cup cream + milk)

1 tbsp low-sodium soy sauce

3 cups crispy fried onions, divided

1/2 tsp black pepper

Fine salt, to taste

Instructions

1. Preheat oven to 400°F.

2. Blanch fresh beans 3 min; ice bath; drain well (or drain canned).

3. Sauté mushrooms in butter; add garlic 1–2 min.

4. Stir in flour 1 min; whisk in broth, soy, pepper; simmer 3 min.

5. Whisk in half-and-half; cook until it coats a spoon.

6. Fold in beans and 1 cup onions; adjust salt.

7. Top with remaining onions; bake 10–12 min until bubbling.

Notes

Use vegetable broth for vegetarian.

Drain beans thoroughly to avoid watery sauce.

Assemble ahead; add topping and bake before serving.