This Crockpot Green Bean Casserole offers all the familiar flavors of the traditional dish, with the added convenience of slow cooking. It’s ideal for busy holiday prep since it allows you to set it and forget it. The green beans stay tender, the creamy sauce is perfectly seasoned, and the crispy onion topping adds the perfect crunch. Whether you’re serving it for Thanksgiving, Christmas, or a family dinner, this dish is a guaranteed crowd-pleaser.
Ingredients
(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)
fresh or frozen green beans cream of mushroom soup milk garlic powder onion powder black pepper salt shredded cheddar cheese (optional) French fried onions butter or cooking spray (for greasing the crockpot)
Directions
Lightly grease the inside of your crockpot with butter or cooking spray.
In a large mixing bowl, combine cream of mushroom soup, milk, garlic powder, onion powder, salt, and pepper. Mix until smooth.
Add green beans to the crockpot and pour the soup mixture over them. Stir to coat evenly.
Cook on low for 4–5 hours or on high for 2–3 hours, until the green beans are tender.
About 30 minutes before serving, stir in half of the fried onions and shredded cheese if using.
Just before serving, sprinkle the remaining fried onions on top and cover until heated through.
Serve directly from the crockpot for easy, warm, and delicious convenience.
Servings and timing
This recipe serves 6 to 8 people. Prep time: 10 minutes Cook time: 4–5 hours (low) or 2–3 hours (high) Total time: approximately 5 hours (on low setting)
Variations
Use canned green beans for a softer texture and shorter cook time.
Substitute cream of chicken or cream of celery soup for a different flavor base.
Mix in sautéed mushrooms or onions for added texture and depth.
Use dairy-free cream soup and plant-based milk for a vegan-friendly version.
Storage/Reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. To reheat, place in a microwave-safe dish and heat in 30-second intervals until warmed through, or reheat in a covered dish in the oven at 350°F for 15–20 minutes. Add extra fried onions on top after reheating for renewed crispiness.
FAQs
Can I use canned green beans?
Yes, canned green beans work well and will shorten the cooking time. Just be sure to drain them first.
Can I make this casserole ahead of time?
Yes, you can assemble everything in the crockpot insert the night before and refrigerate. Start cooking the next day.
Do I have to use cream of mushroom soup?
No, you can use cream of chicken, cream of celery, or a homemade white sauce instead.
Can I cook this on high?
Yes, cook on high for about 2–3 hours, checking for tenderness.
How do I keep the onions crispy?
Add half the onions at the end of cooking and the rest just before serving for the best texture.
Can I freeze green bean casserole?
It’s best fresh, but you can freeze leftovers. Let cool, then store in an airtight container for up to 1 month. Reheat in the oven for best results.
What can I serve with this casserole?
It pairs well with turkey, mashed potatoes, stuffing, and other holiday dishes.
Can I add cheese?
Yes, shredded cheddar or mozzarella adds richness. Mix it in before the final cook stage.
Is this recipe gluten-free?
Use gluten-free fried onions and a gluten-free cream soup to make it gluten-free.
Can I double the recipe?
Yes, you can double the ingredients for a larger crowd. Just use a larger crockpot and increase the cook time slightly.
Conclusion
Crockpot Green Bean Casserole is a classic side dish made even easier with the help of your slow cooker. With its creamy texture, savory flavors, and crunchy topping, it’s a must-have for holiday meals and cozy dinners alike. Minimal prep, reliable results, and all the comforting flavor of the original—this crockpot version is a game changer.
This Crockpot Green Bean Casserole delivers all the classic comfort of the traditional holiday dish, made easier with slow cooking. Creamy, savory, and topped with crispy fried onions, it’s a no-fuss, crowd-pleasing side perfect for busy gatherings.
Ingredients
2 lbs fresh or frozen green beans, trimmed
2 cans (10.5 oz each) cream of mushroom soup
3/4 cup milk
1/2 tsp garlic powder
1/2 tsp onion powder
1/2 tsp salt
1/4 tsp black pepper
1 cup shredded cheddar cheese (optional)
1 1/2 cups French fried onions
1 tbsp butter or cooking spray (for greasing crockpot)
Instructions
Lightly grease the inside of your crockpot with butter or cooking spray.
In a large bowl, whisk together cream of mushroom soup, milk, garlic powder, onion powder, salt, and pepper until smooth.
Add green beans to the crockpot and pour the soup mixture over them. Stir to coat evenly.
Cover and cook on low for 4–5 hours or high for 2–3 hours, until green beans are tender.
About 30 minutes before serving, stir in half of the French fried onions and the shredded cheddar cheese, if using.
Just before serving, sprinkle the remaining fried onions on top and cover until warmed through.
Serve directly from the crockpot for ease and warmth.
Notes
Use canned green beans for softer texture and faster cook time (2–3 hours on low).Add sautéed mushrooms or onions for extra flavor and texture.For a vegan version, use plant-based milk and cream soup.Add extra fried onions after reheating to regain crunch.Great for make-ahead—assemble the night before and start cooking the next day.
