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The BEST Classic Green Bean Casserole for Your Holiday Table

A close-up serving of creamy green bean casserole topped generously with crispy fried onions.

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Make the classic, creamy green bean casserole that everyone expects at Thanksgiving or Christmas. This simple recipe uses traditional ingredients and delivers a comforting, crowd-pleasing side dish with a crispy fried onion topping.

Ingredients

Scale
  • 2 cans (14.5 ounces each) cut green beans, drained
  • 1 can (10.5 ounces) condensed cream of mushroom soup
  • 1/2 cup milk
  • 1 teaspoon soy sauce
  • 1/4 teaspoon black pepper
  • 1 1/3 cups crispy fried onions, divided

Instructions

  1. Preheat your oven to 350 degrees Fahrenheit. Lightly grease a 1.5-quart casserole dish.
  2. In a large bowl, combine the drained green beans, cream of mushroom soup, milk, soy sauce, and black pepper. Mix these ingredients until they are fully combined.
  3. Stir in 1/3 cup of the crispy fried onions into the green bean mixture.
  4. Spread the mixture evenly into your prepared casserole dish.
  5. Bake for 25 minutes.
  6. Remove the casserole from the oven. Sprinkle the remaining 1 cup of crispy fried onions evenly over the top.
  7. Return the casserole to the oven and bake for an additional 5 to 10 minutes, or until the topping is golden brown and the casserole is bubbly.
  8. Let the casserole stand for 5 minutes before you serve it.

Notes

  • You can prepare this simple baked side dish up to one day ahead. Cover the unbaked casserole and refrigerate. Add 10 minutes to the initial baking time if baking straight from the refrigerator.
  • For a Southern green bean casserole variation, stir 1/2 cup of shredded cheddar cheese into the bean mixture before baking.
  • If you want to try an air fryer green bean casserole, bake the mixture in an oven-safe basket at 350 degrees Fahrenheit for 15 minutes, then top with onions and cook for 3-5 more minutes until the topping browns.

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