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Green Bean Casserole from Scratch

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This Green Bean Casserole from Scratch moves away from canned shortcuts in favor of a velvety homemade cheddar sauce, fresh cremini mushrooms, and vibrant French-cut beans.

Ingredients

Scale

24 ounces frozen French-cut green beans

8 ounces cremini mushrooms, quartered

3 tablespoons butter

1 small yellow onion, sliced

1 tablespoon fresh parsley, chopped

2 tablespoons all-purpose flour

1/2 teaspoon lemon zest

1/2 teaspoon salt

1 pinch ground black pepper

1/2 cup milk

1 cup sour cream

1/2 cup shredded sharp Cheddar cheese

2.8 ounces French-fried onions

Instructions

1. Preheat oven to three hundred fifty Fahrenheit.

2. Steam green beans in 1/2 inch water for 5 minutes until tender-crisp; drain thoroughly.

3. In a bowl, toss drained beans with the quartered raw mushrooms.

4. In a skillet, sauté onion and parsley in melted butter until translucent.

5. Whisk in flour, lemon zest, salt, and pepper to create a roux.

6. Slowly whisk in milk and sour cream until the sauce bubbles and thickens.

7. Fold in the beans and mushrooms, then stir in half of the cheddar and half of the fried onions.

8. Transfer to a 1.5-quart dish and top with the remaining cheese and onions.

9. Bake for 15 minutes at three hundred fifty Fahrenheit until golden and bubbling.

Notes

Dry the beans thoroughly after steaming to prevent a watery sauce.

Use a block of sharp cheddar and grate it yourself for the best melt.

Quartering mushrooms provides a better texture than thin slices.

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