Crockpot Green Bean Casserole Recipe
Introduction
This Crockpot Green Bean Casserole is a comforting and easy dish perfect for any occasion. Combining creamy mushroom soup, tender green beans, and crispy fried onions, it delivers classic flavors without the fuss of the oven.

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: Add half of the crispy fried onions and shredded cheddar cheese to the mixture, then gently stir to incorporate.
- 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 cheddar cheese and crispy fried onions on top, then cover and continue cooking until the topping is golden and crispy.
- Step 5: Serve the casserole hot and enjoy your cozy, flavorful green bean side dish.
Tips & Variations
- Use fresh or frozen green beans instead of canned for a fresher taste; just adjust the cooking time accordingly.
- Add a splash of soy sauce or Worcestershire sauce to deepen the flavor of the mushroom soup mixture.
- For an extra creamy casserole, stir in a few tablespoons of sour cream before cooking.
- Mix in cooked bacon bits for a smoky twist.
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. The topping may lose some crispness after refrigeration; to restore, place under a broiler for a couple of minutes 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. Trim and cut them into bite-sized pieces and steam or blanch them briefly before mixing to ensure they cook through in the crockpot.
Is it possible to make this casserole in the oven?
Absolutely. Combine all ingredients except for the topping in a baking dish, bake at 350°F (175°C) for about 30 minutes, then add the cheese and fried onions on top and bake for an additional 10-15 minutes until bubbly and golden.
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Crockpot Green Bean Casserole Recipe
- Total Time: 4 hours 40 minutes
- Yield: 6 servings 1x
Description
This Crockpot Green Bean Casserole is a comforting, easy-to-make side dish perfect for family dinners and holiday meals. Combining tender green beans, creamy mushroom soup, melted cheddar cheese, and crispy fried onions, this slow cooker recipe delivers classic flavors with minimal effort. Slow-cooked to perfection, it results in a warm, cheesy casserole topped with a crunchy onion crust.
Ingredients
Main 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
- Mix Ingredients: In a large bowl, combine the drained green beans, cream of mushroom soup, milk, garlic powder, salt, and black pepper. Stir thoroughly until all ingredients are evenly incorporated.
- Add Cheese and Onions: Stir in half of the crispy fried onions and half of the shredded cheddar cheese to the mixture, ensuring they are evenly distributed.
- Transfer to Crockpot: Pour the prepared mixture into the crockpot and spread it evenly. Set the crockpot to cook on low heat for 4 hours, allowing flavors to meld and the casserole to become hot and bubbly.
- Top and Crisp: About 30 minutes before serving, sprinkle the remaining cheese and fried onions evenly over the top of the casserole. Continue cooking to let the cheese melt and the onions become crispy.
- Serve: Once the topping is crispy and golden, carefully ladle the casserole onto plates or serving dishes. Serve hot and enjoy this comforting classic side dish.
Notes
- Using fresh green beans instead of canned will require pre-cooking to soften them before adding to the crockpot.
- For a richer flavor, use sharp cheddar cheese or a blend of cheeses such as Gruyère.
- To make it gluten free, substitute crispy fried onions with gluten-free fried onions or crispy breadcrumbs.
- To ensure crispy topping, do not cover the crockpot during the last 30 minutes of cooking.
- This casserole can be prepared a day in advance by mixing all ingredients except for the cheese and onions, refrigerating overnight, then cooking as directed.
- Prep Time: 10 minutes
- Cook Time: 4 hours 30 minutes
- Category: Side Dish
- Method: Slow Cooking
- Cuisine: American
Keywords: green bean casserole, crockpot green bean casserole, slow cooker side dish, mushroom soup casserole, holiday side dish

