Crockpot Green Bean Casserole Recipe
Introduction
This Crockpot Green Bean Casserole is a simple, comforting twist on a classic holiday favorite. It combines tender green beans with a creamy mushroom sauce, all slowly cooked to perfection and topped with crispy fried onions for a delightful crunch.

Ingredients
- 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)
- 3 cups crispy fried onions (divided)
Instructions
- Step 1: In a 6-quart slow cooker, combine the thawed green beans, cream of mushroom soup, milk, soy sauce, black pepper, seasoned salt, and 2 cups of the crispy fried onions. Stir gently to mix.
- Step 2: Cover and cook on low for 2 ½ to 3 hours, or until the green beans are tender.
- Step 3: Once cooked, switch the slow cooker setting to warm to keep the casserole heated.
- Step 4: While keeping the slow cooker on warm, heat a dry non-stick skillet over medium heat. Add the remaining 1 cup of crispy fried onions and stir frequently, toasting them lightly until golden and fragrant.
- Step 5: Sprinkle the toasted fried onions on top of the casserole just before serving for a crispy finish.
Tips & Variations
- Use fresh green beans if preferred; blanch them briefly before adding to the slow cooker to ensure tenderness.
- For a richer flavor, substitute half the milk with cream or add a splash of white wine.
- Add minced garlic or diced onions to the slow cooker for extra depth.
- Try adding cooked bacon bits or shredded cheese before serving for a savory twist.
Storage
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or on the stovetop to avoid overcooking the green beans. It’s best to add fresh fried onions after reheating to keep them crispy.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh green beans instead of frozen?
Yes, fresh green beans work well. Blanch them briefly in boiling water to soften before adding to the slow cooker to ensure they become tender in the same cooking time.
Can this casserole be made ahead of time?
You can prepare the mixture up to the slow cooker step and refrigerate it overnight. When ready, cook as directed, but you may need to add extra time to reach the proper temperature and tenderness.
PrintCrockpot Green Bean Casserole Recipe
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.
- Prep Time: 10 minutes
- Cook Time: 2 hours 30 minutes
- Total Time: 2 hours 40 minutes
- Yield: 8 servings 1x
- Category: Side Dish
- Method: Slow Cooking
- Cuisine: American
Ingredients
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
- 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.
- 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.
- 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.
- 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.
- 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

