Free up your oven this holiday season with this creamy and flavorful Crockpot Green Bean Casserole! It’s the ultimate set-it-and-forget-it side dish that turns out perfectly every time. This slow cooker version of the classic holiday favorite saves you space, time, and stress—without sacrificing any of that irresistible flavor.
A Holiday Must-Have
Is it really Thanksgiving without green bean casserole? For many families, this creamy, crunchy side dish is a must-have on the table. Traditionally baked in the oven, this crockpot version makes things even easier—perfect for busy holiday kitchens where oven space is precious.
Pair it with Slow Cooker Turkey Breast or Crockpot Spiral Ham for a complete meal that’s warm, comforting, and full of flavor.
“I made this recipe—it was so good! The only thing I added was a teaspoon of Worcestershire, some mushrooms, and seasoning. I like it better in the crockpot versus the oven—it’s easier to transport and stays warm for gatherings. Thank you!”
— Sherri S.
Why You’ll Love This Recipe
- Frees up oven space: Ideal for holiday meals when every rack is full.
- Effortless & hands-free: Mix it, set it, and let the slow cooker do the work.
- Perfect for potlucks: Easy to transport and stays warm for serving.
- Classic flavor: Creamy, savory, and topped with crispy onions—just like the traditional version!
Ingredients You’ll Need
- 3 cans cut green beans (14.5 oz each, drained)
- 2 cans cream of mushroom soup (10.5 oz each, or homemade if preferred)
- ⅓ cup milk – any kind works
- ½ teaspoon salt
- ½ teaspoon black pepper
- 6 oz French fried onions – the crispy topping everyone loves
Optional additions: sliced mushrooms, a splash of Worcestershire sauce, shredded cheddar cheese, or a sprinkle of Parmesan.
How to Make Crockpot Green Bean Casserole
Step 1: Make the Creamy Sauce
In a medium mixing bowl, whisk together the cream of mushroom soup, milk, salt, and pepper until smooth.
Step 2: Add the Green Beans
Gently stir in the drained green beans and half of the French fried onions until evenly coated.
Step 3: Fill the Crockpot
Lightly spray your slow cooker with non-stick spray, then pour in the green bean mixture and spread it evenly.
Step 4: Cook
Cover and cook on LOW for 2–3 hours or on HIGH for 1–1.5 hours until heated through and bubbly.
Step 5: Finish & Serve
Remove the lid, sprinkle the remaining French fried onions on top, and serve immediately. The result? Creamy green beans with a golden, crunchy topping—comfort food perfection!
Recipe Tips & Tricks
- Prep early: Start it first thing in the morning and keep on Warm until dinner.
- Make a double batch: This recipe easily doubles or triples to feed a crowd.
- Use fresh or frozen beans: Fresh or thawed frozen green beans work just as well—just avoid adding them completely frozen.
- Change it up: Try cream of chicken or cream of celery soup instead of mushroom.
- Add extra flavor: Worcestershire sauce, garlic powder, or onion powder can deepen the flavor.
- Make it cheesy: Stir in shredded cheddar or use canned cheddar soup for a fun twist.
Serving Ideas
Serve your crockpot green bean casserole alongside:
- Roasted or slow cooker turkey
- Mashed potatoes and gravy
- Cranberry sauce
- Homemade stuffing or rolls
It’s the ultimate crowd-pleasing side that completes any holiday spread!
Storage Tips
- Refrigerate: Store leftovers in an airtight container for up to 3 days.
- Reheat: Warm in the slow cooker on Low or in the oven at 350°F until heated through.
- Freeze: Freeze for up to 2 months—just reheat gently to preserve the creamy texture.
Crockpot Green Bean Casserole Recipe
Prep Time: 5 minutes
Cook Time: 2 hours
Total Time: 2 hours 5 minutes
Servings: 8
Cuisine: American
Course: Side Dish
Calories: 216 kcal
Ingredients
- 3 cans (14.5 oz each) cut green beans, drained
- 2 cans (10.5 oz each) cream of mushroom soup
- ⅓ cup milk
- ½ tsp salt
- ½ tsp pepper
- 6 oz French fried onions
Instructions
- In a bowl, whisk together the soup, milk, salt, and pepper until combined.
- Stir in green beans and half the fried onions.
- Coat your slow cooker with non-stick spray and pour in the mixture.
- Cover and cook on LOW 2–3 hours or HIGH 1–1.5 hours.
- Remove the lid, sprinkle with remaining onions, and serve warm.
Variations
- Cream of Chicken or Celery Soup – for a flavor twist.
- Cheesy Version – add shredded cheddar or canned cheddar soup.
- Parmesan Topping – sprinkle ½ cup before serving.