Crockpot Green Bean Casserole Recipe
Introduction
This Crockpot Green Bean Casserole is a comforting classic made easy with a slow cooker. It combines tender green beans, creamy mushroom soup, and crispy fried onions for a perfect side dish that’s ready when you are.

Ingredients
- 2 cans green beans, drained
- 1 can cream of mushroom soup
- 0.5 cup milk
- 1 cup shredded cheddar cheese
- 1 cup crispy fried onions
- 0.5 teaspoon garlic powder
- 0.5 teaspoon black pepper
- 0.5 teaspoon salt
Instructions
- Step 1: In a large bowl, mix the drained green beans, cream of mushroom soup, milk, garlic powder, salt, and black pepper until well combined.
- Step 2: Stir in half of the crispy fried onions and half of the shredded cheddar cheese.
- Step 3: Pour the mixture into the crockpot and cook on low for 4 hours.
- Step 4: During the last 30 minutes of cooking, sprinkle the remaining cheese and fried onions on top, then cover and cook until the topping is crispy.
- Step 5: Serve hot and enjoy your creamy, crunchy green bean casserole.
Tips & Variations
- For a healthier twist, use fresh or frozen green beans instead of canned and adjust the cooking time accordingly.
- Swap cheddar cheese for mozzarella or pepper jack to change the flavor profile.
- Add cooked bacon bits for a smoky, savory addition.
- If you prefer a thicker casserole, reduce the milk slightly or add a tablespoon of flour to the soup mixture before cooking.
Storage
Store leftover casserole in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through. To keep the topping crispy, add fresh fried onions before serving.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh green beans instead of canned?
Yes, fresh green beans can be used but you’ll need to steam or blanch them before adding to the crockpot to ensure they cook through and become tender.
How do I make the fried onion topping crispy in the crockpot?
Add the fried onions during the last 30 minutes of cooking with the shredded cheese. Cooking uncovered or partially covered helps the onions crisp up without becoming soggy.
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Crockpot Green Bean Casserole Recipe
- Total Time: 4 hours 40 minutes
- Yield: 6 servings 1x
Description
A creamy, comforting green bean casserole made effortlessly in a crockpot, combining tender green beans, savory mushroom soup, melted cheddar cheese, and crispy fried onions for the perfect side dish to any meal.
Ingredients
Green Bean Mixture
- 2 cans green beans, drained
- 1 can cream of mushroom soup
- 0.5 cup milk
- 0.5 teaspoon garlic powder
- 0.5 teaspoon black pepper
- 0.5 teaspoon salt
Cheese and Topping
- 1 cup shredded cheddar cheese (divided)
- 1 cup crispy fried onions (divided)
Instructions
- Combine Ingredients: In a large bowl, mix together the drained green beans, cream of mushroom soup, milk, garlic powder, salt, and black pepper until well combined.
- Add Cheese and Onions: Stir in half of the shredded cheddar cheese and half of the crispy fried onions into the green bean mixture.
- Cook in Crockpot: Pour the mixture into the crockpot and cook on low heat for 4 hours, allowing the flavors to meld and the casserole to heat through.
- Add Toppings: In the last 30 minutes of cooking, sprinkle the remaining shredded cheddar cheese and crispy fried onions on top, letting the cheese melt and the onions crisp up.
- Serve: Once the cheese is melted and onions are crispy, serve the casserole hot as a delicious side dish.
Notes
- Make sure to drain the canned green beans well to prevent the casserole from becoming too watery.
- If you prefer a thicker casserole, reduce the milk slightly or use less milk.
- For a richer flavor, consider using sharp cheddar cheese.
- You can substitute fresh green beans, but adjust cooking time accordingly for tenderness.
- This recipe can be prepared ahead and warmed before serving.
- Prep Time: 10 minutes
- Cook Time: 4 hours 30 minutes
- Category: Side Dish
- Method: Slow Cooking
- Cuisine: American
Keywords: crockpot green bean casserole, green bean side dish, mushroom soup casserole, slow cooker casserole, holiday side dish

