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Crockpot Green Bean Casserole Recipe

4.8 from 95 reviews

This Crockpot Green Bean Casserole is a comforting, easy-to-make classic side dish perfect for holiday dinners or weeknight meals. Utilizing a slow cooker, it combines tender green beans with creamy mushroom soup, savory seasonings, and crispy fried onions for a flavorful and hassle-free casserole.

Ingredients

Scale

Green Bean Mixture

  • 8 cups frozen cut green beans, thawed (about 2 lbs)
  • 21 ounces condensed cream of mushroom soup (2 cans)
  • 1 cup milk
  • 2 teaspoons soy sauce
  • ¾ teaspoon black pepper
  • ¼ teaspoon seasoned salt (or to taste)
  • 2 cups crispy fried onions (divided)

Topping

  • 1 cup crispy fried onions

Instructions

  1. Combine Ingredients: In a 6-quart slow cooker, mix the thawed green beans with the condensed cream of mushroom soup, milk, soy sauce, black pepper, seasoned salt, and 2 cups of the crispy fried onions. Stir well to ensure all ingredients are evenly distributed.
  2. Cook the Casserole: Cover the slow cooker and cook on low heat for 2 ½ to 3 hours, or until the green beans are tender and the mixture is heated through.
  3. Set to Warm: Once cooked, switch the slow cooker to the warm setting to keep the casserole at serving temperature while you prepare the topping.
  4. Toast Fried Onions: In a dry non-stick skillet over medium heat, pan-fry the remaining 1 cup of crispy fried onions, stirring frequently, until they are lightly toasted and golden brown. This enhances their flavor and crunch.
  5. Serve: Just before serving, sprinkle the toasted fried onions evenly over the top of the casserole for a crispy, flavorful finish.

Notes

  • You can substitute fresh green beans, but thawed frozen beans help maintain consistency and reduce prep time.
  • To make it gluten-free, use gluten-free fried onions and soy sauce.
  • For a richer flavor, use whole milk or a mix of milk and cream.
  • If you prefer a thicker casserole, reduce the amount of milk slightly.
  • Leftovers can be stored covered in the refrigerator for up to 3 days; reheat gently before serving.

Keywords: green bean casserole, crockpot green bean casserole, slow cooker side dish, holiday side dish, easy green bean casserole, mushroom soup casserole