Save oven space and make this Crockpot Green Bean Casserole! It’s the perfect side dish for holidays or weeknight dinners with minimal prep and maximum flavor.
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Slow Cooker Green Bean Casserole
If you grew up on traditional green bean casserole, get ready for a life-changing recipe! You’ll get the classic Thanksgiving and Christmas dish with a cheesy twist: shredded Parmesan cheese.
The slow cooker does all the work for you, melting the cheese right into the creamy mushroom sauce, creating an extra-rich, flavorful dish that sets it apart from the traditional version. It’s so easy to make, you can make it for the holidays, weeknight dinners, or family gatherings any time of the year.
Once you try this recipe, you won’t believe how easy it is. Just like this Crockpot Broccoli Casserole and Crockpot Corn Casserole, they steal the show at dinnertime.
Tips for Success
Drain the green beans really well. Let them sit in the strainer for a few minutes, then pat them dry with a paper towel. Even a little extra liquid can disrupt the sauce’s consistency, resulting in a soupy casserole.
Use freshly grated Parmesan. This makes a big difference in the overall taste and texture of the casserole. Pre-grated Parmesan does not melt as easily and will sit on top of the casserole rather than blend into it.
Watch the cooking time on the crock pot. This casserole only needs two hours to cook. If it is overcooked, the onions will lose their crunch, and the green beans can become soggy.
Ingredients & Estimated Cost:
Here is everything you need to make this casserole, along with a few tips and substitution recommendations.
- 14.5 oz can whole green beans (4 cans – $3.36): Be sure to drain the canned beans. You can substitute 2 pounds of frozen green beans.
- 10.5 oz cans of cream of mushroom soup (3 cans – $2.10): Cream of chicken soup will work too.
- 1 cup whole milk (1 cup – $0.21): Substitute with 2%, which will also help thin the mushroom soup. Or use half-and-half for an extra richness.
- Parmesan cheese (2 cups – $4.07): Freshly grated has the best flavor and melts better, but you can use pre-shredded if needed.
- French’s crispy fried onions (1 jar – $3.72): You can use another brand, such as Great Value, for a budget-friendly swap.
- Salt (1 teaspoon – $0.01): Kosher or sea salt will work.
- Black Pepper (1 teaspoon – $0.01): Don’t skip this seasoning as it enhances the overall flavor of the dish.
The recipe cost is calculated based on the amounts needed and will vary depending on fluctuating grocery costs.
How To Make Green Bean Casserole in the Crockpot
Mix the ingredients, pour into the slow cooker, cook on low, top with cheese and onions, and serve. Let me show you how.
- Stir the soup, milk, salt, and pepper.
- In another bowl, toss together the green beans, half of the Parmesan cheese, and half of the onions.
- Combine the soup mixture with the green bean mixture.
- Pour the mixture into the slow cooker and cook on low for two hours.
- Top with the remaining French-fried onions and cheese before serving.
Green Bean Casserole Recipe FAQs
Sure. Mozzarella or cheddar cheese are good options for a cheesy twist.
After cooking the casserole on low for 2 hours, set the crockpot to warm while serving for up to 2 hours.
This is a great make-ahead recipe to save you time on the day of. I recommend prepping the recipe the day before. Just mix everything except the crispy onions, then store it in the refrigerator, covered. Toss in the crispy onions before adding the mixture to the crockpot to cook.
Crock Pot Green Bean Casserole
Recipe Cost 13.51 Serving Cost 1.35Equipment
- mixing bowls
- mixing spoon
- Measuring cups and spoons
- slow cooker
Ingredients
- 4 14.5 oz cans whole green beans drained
- 3 10.5 oz cans of cream of mushroom soup
- 1 cup whole milk
- 2 cups parmesan cheese shredded
- 1 whole jar of French’s crispy fried onions
- 1 teaspoon salt
- 1 teaspoon pepper
Instructions
- In a medium bowl, add in the mushroom soup, whole milk, salt, and pepper, and mix until combined.
- In a large bowl, add the green beans, 1½ cups parmesan cheese, and all but ½ cup of the fried onions and toss until combined.
- Pour the soup mixture over the green beans and toss until combined.
- Pour the mixture into the crockpot and set it on low for 2 hours.
- When finished, top with the remaining onions and cheese.
- Serve and Enjoy!
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