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Creamy Green Bean Casserole Crockpot Recipe: Easy Make Ahead for Parties

creamy green bean casserole crockpot recipe - featured image

This creamy green bean casserole is a nostalgic, crowd-pleasing side dish made effortlessly in the crockpot. Tender green beans, a rich mushroom sauce, and crispy fried onions make it perfect for parties, holidays, or cozy family dinners.

Ingredients

Scale
  • 32 oz frozen or fresh green beans (French-cut preferred)
  • 2 cans (10.5 oz each) cream of mushroom soup
  • 1 cup sour cream
  • 1/2 cup milk
  • 1 1/2 cups French fried onions, plus more for topping
  • 1 cup shredded cheddar cheese (optional)
  • 1 tbsp Worcestershire sauce
  • 1 tsp garlic powder
  • 1/2 tsp salt
  • 1/2 tsp black pepper
  • 1 cup mushroom slices (optional, fresh or canned)

Instructions

  1. Prep the green beans: If using fresh, trim ends, rinse, and cut into 2-inch pieces. For frozen, use as is.
  2. In a large mixing bowl, whisk together cream of mushroom soup, sour cream, milk, Worcestershire sauce, garlic powder, salt, and black pepper until smooth. Fold in mushrooms if using.
  3. Add green beans to the bowl and toss to coat. Stir in shredded cheddar cheese (if using) and 1 cup fried onions. Mix until evenly combined.
  4. Spray crockpot with nonstick spray or lightly grease. Pour mixture into crockpot and spread evenly. Top with remaining 1/2 cup fried onions.
  5. Cover and cook on LOW for 4-5 hours or HIGH for 2-2.5 hours, until beans are tender and sauce is bubbling. Stir gently during last 30 minutes if needed.
  6. Before serving, sprinkle extra fried onions and cheese on top if desired. Let sit uncovered for 10 minutes to thicken.

Notes

For gluten-free, use gluten-free soup and fried onions. For dairy-free, substitute coconut yogurt and vegan cheese. If using canned green beans, drain well and reduce cooking time by 30 minutes. For extra flavor, stir in a tablespoon of butter before serving. Garnish with fresh parsley or chives for color.

Nutrition

Keywords: green bean casserole, crockpot, slow cooker, holiday side dish, comfort food, party recipe, make ahead, vegetarian, creamy casserole