Absolutely Delicious Green Bean Casserole from Scratch
Ingredients
- 2 (12 ounce) packages frozen French cut green beans
- 8 ounces crimini mushrooms, quartered
- 3 tablespoons butter
- 1 small onion, halved and thinly sliced
- 1 tablespoon chopped fresh parsley
- 2 tablespoons all-purpose flour
- ½ teaspoon lemon zest
- ½ teaspoon salt
- 1 pinch ground black pepper
- ½ cup milk
- 1 cup sour cream
- ½ cup shredded Cheddar cheese
- 1 (2.8 ounce) can French-fried onions
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Instructions
- Preheat the oven to 350 degrees F (175 degrees C).
- Place green beans in a saucepan and fill with about 1/2 inch water; bring to a boil. Cover and steam until beans are tender but still bright green, about 5 minutes. Drain.
- Combine drained beans in a bowl with mushrooms; toss to combine.
- Melt butter in a large skillet over medium heat. Add onion and parsley; cook and stir until onion is tender, 5 to 7 minutes. Whisk in flour until blended, then mix in lemon zest, salt, and pepper. Gradually whisk in milk, stirring constantly, so that no lumps form.
- Add sour cream and stir until combined. Warm over medium heat until sauce begins to bubble. Dump in green beans and mushrooms, stirring to coat.
- Remove from the heat and toss briefly with 1/2 of the Cheddar cheese and 1/2 of the French-fried onions. Spoon into a 1 1/2-quart casserole dish; top with the remaining Cheddar and onions.
- Bake in the preheated oven until Cheddar is melted, about 15 minutes.
Source
Original recipe: View Original