If you're looking for a delicious, easy-to-make side dish for any family gathering, holiday feast, or weeknight dinner, this Crockpot Green Bean Casserole is the answer! A timeless classic, the green bean casserole is well-loved for its creamy, savory flavor with just the right amount of crunch from crispy fried onions. But what makes this recipe extra convenient is its preparation in a slow cooker! By using your crockpot, you save precious time and energy while still serving up a flavorful dish that everyone will love. Read on to discover the best way to create this beloved dish!
What is Crockpot Green Bean Casserole?
Crockpot Green Bean Casserole is a slow-cooked version of the traditional oven-baked dish that has graced holiday tables for decades. The main components include green beans, cream of mushroom soup, and crispy fried onions, combined to create a rich, creamy dish with layers of savory flavors. The crockpot method allows for a hassle-free cooking process, making it perfect for busy holidays like Thanksgiving or Christmas, where the oven is often occupied by the main course. The slow-cooking process enhances the flavors, allowing everything to meld together beautifully.
Ingredients List for Crockpot Green Bean Casserole
To create this classic side dish, you'll need just a few simple ingredients. These pantry staples come together quickly and easily in your slow cooker, making for a low-effort yet incredibly delicious meal.
- 8 cups frozen cut green beans, thawed (2 lbs) – Frozen green beans are a great option here, as they are convenient and quick to prepare. You could also use fresh beans if you'd prefer a firmer texture. Be sure to thaw the frozen beans ahead of time for even cooking.
- 21 ounces condensed cream of mushroom soup (2 cans) – Cream of mushroom soup serves as the creamy base for this casserole, adding richness and depth of flavor. If you're not a fan of mushrooms, feel free to substitute it with a different condensed soup like cream of chicken or cream of celery.
- 1 cup milk – The milk helps to thin out the condensed soup, making the casserole creamy but not overly thick.
- 2 teaspoons soy sauce – Soy sauce adds a subtle umami flavor that enhances the overall savory profile of the dish.
- ¾ teaspoon black pepper – Black pepper provides a bit of a kick and balances out the richness of the dish.
- ¼ teaspoon seasoned salt (or to taste) – Seasoned salt adds another layer of flavor. Feel free to adjust the quantity based on your taste preference.
- 3 cups crispy fried onions, divided – Crispy fried onions are a crucial component of green bean casserole. Half of the onions will be mixed into the casserole for texture, while the rest will be added on top for a crunchy, golden-brown finish.
Substitutions and Variations
The beauty of this Crockpot Green Bean Casserole is its versatility. You can easily adapt it to your taste preferences or dietary needs.
- Cream of Mushroom Substitute: If you're not a fan of mushrooms, you can swap the cream of mushroom soup with cream of chicken, cream of celery, or even a dairy-free cream soup if you're looking to make the dish vegan.
- Dairy-Free Option: To make this casserole dairy-free, use a plant-based cream soup and substitute the milk with almond, oat, or soy milk.
- Fresh Green Beans: If you prefer a fresher option, you can use fresh green beans instead of frozen. Just blanch them first by boiling them for 3-4 minutes, then cool them in an ice bath before adding them to the crockpot.
- Extra Seasoning: You can experiment with adding garlic powder, onion powder, or smoked paprika for added depth of flavor.
- Cheesy Twist: For a more indulgent version, sprinkle shredded cheddar or mozzarella cheese over the casserole during the last 30 minutes of cooking.
Step-by-Step Cooking Instructions

- Prepare Your Crockpot: Begin by lightly greasing the inside of your crockpot with cooking spray or butter. This will prevent the casserole from sticking and make clean-up easier.
- Mix the Base: In a large bowl, combine the thawed green beans, condensed cream of mushroom soup, milk, soy sauce, black pepper, and seasoned salt. Stir everything together until the ingredients are well-mixed.
- Layer the Ingredients: Add about half of the crispy fried onions into the green bean mixture. Stir to combine, ensuring that the onions are evenly distributed throughout.
- Transfer to Crockpot: Pour the green bean mixture into the prepared crockpot, smoothing it out into an even layer.
- Cook on Low: Cover the crockpot and set it to cook on low heat for 4-5 hours. The casserole is done when the green beans are tender, and the sauce is creamy and well-heated.
- Final Onion Topping: About 30 minutes before serving, sprinkle the remaining crispy fried onions over the top of the casserole. Allow the casserole to continue cooking, uncovered, until the onions are golden and crispy.
How to Cook Crockpot Green Bean Casserole: A Step-by-Step Guide
Cooking this Crockpot Green Bean Casserole is incredibly easy, especially with a slow cooker to do most of the work for you. Here's a more detailed breakdown of the process:
- Start by Thawing the Green Beans: It's important to use thawed beans so that they cook evenly. You can either leave them out at room temperature for a few hours or use the microwave to speed up the process.
- Combine the Ingredients: Mixing the condensed soup, milk, soy sauce, and seasoning together ensures an even distribution of flavor throughout the dish.
- Add Fried Onions Midway: Including crispy fried onions in the mix early on allows them to absorb some of the sauce, making them tender while still leaving plenty for the crispy topping later.
- Slow Cook for Best Results: Set the crockpot to low to ensure the casserole cooks evenly without becoming mushy. Slow cooking allows the flavors to meld together perfectly.
- Add More Crispy Onions at the End: The final layer of crispy fried onions added during the last 30 minutes provides the classic crunch that everyone loves in a green bean casserole.
Common Mistakes to Avoid
- Overcooking the Beans: Keep an eye on the casserole in the last hour of cooking. Overcooking can result in mushy green beans, which can detract from the overall texture of the dish.
- Not Thawing the Beans: If you use frozen beans without thawing them first, they might release too much water into the casserole, diluting the flavor and making the sauce too runny.
- Skipping the Onion Topping: The crispy fried onions are a signature part of the dish! Don’t forget to add them during the last 30 minutes for that perfect crunch.
Serving and Presentation Tips
- Serve Warm: Green bean casserole is best enjoyed warm. Keep it in the crockpot on the "keep warm" setting if you're not serving it immediately.
- Family-Style: Serve the casserole directly from the crockpot at family gatherings for an easy, casual presentation.
- Garnish: For a touch of color, garnish with freshly chopped parsley or a sprinkle of paprika before serving.
How to Serve Crockpot Green Bean Casserole
This casserole pairs beautifully with a variety of main dishes, making it an ideal side dish for holiday meals like Thanksgiving and Christmas. It’s perfect alongside turkey, ham, or roast beef, and it also complements vegetarian mains like stuffed squash or nut loaf.
Presentation Ideas for Crockpot Green Bean Casserole
- Holiday Table: Serve the casserole in a decorative crockpot or transfer it to a beautiful serving dish for a more elegant presentation. Add a sprig of rosemary or thyme on top for a festive touch.
- Buffet Style: If you're hosting a buffet, consider using individual ramekins to portion out the casserole for a more polished look.
Crockpot Green Bean Casserole Recipe Tips
- Make Ahead: This casserole can be made up to a day in advance. Simply prepare the dish as directed, refrigerate it overnight, and cook it in the crockpot the next day.
- Double the Recipe: If you're feeding a large crowd, this recipe can easily be doubled. Just ensure your crockpot is large enough to hold the extra ingredients.
Frequently Asked Questions (FAQs)
Q: Can I use fresh green beans instead of frozen?
A: Yes! Fresh green beans work well. Just blanch them before adding them to the crockpot to ensure they cook evenly.
Q: Can I make this recipe vegan?
A: Absolutely! Substitute the cream of mushroom soup with a plant-based version and use dairy-free milk for a vegan-friendly casserole.
Q: Can I add cheese to the recipe?
A: For a cheesy twist, add shredded cheddar or mozzarella cheese during the last 30 minutes of cooking.
Q: How long does it take to cook in the crockpot?
A: The casserole will be ready in about 4-5 hours on low heat.
Conclusion
Crockpot Green Bean Casserole is the perfect side dish for any gathering, combining convenience with comfort. By using your slow cooker, you free up oven space while still serving up a rich, savory, and crunchy dish that will have your guests asking for seconds. So go ahead, try this easy recipe for your next family meal or holiday event, and enjoy the classic flavors with minimal effort!
PrintCrockpot Green Bean Casserole Recipe
Crockpot Green Bean Casserole recipe combines tender green beans, creamy mushroom soup, soy sauce, and crispy fried onions, all slow-cooked for a deliciously easy dish.
- Prep Time: 10 minutes
- Cook Time: 4 hour
- Total Time: 4 hour 10 minutes
- Yield: 8 servings 1x
- Category: Side Dish
- Method: Slow Cooker (Crockpot)
- Cuisine: American
- Diet: Vegetarian
Ingredients
- 8 cups frozen cut green beans (thawed, 2 lbs)
- 21 ounces condensed cream of mushroom soup (2 cans)
- 1 cup milk
- 2 teaspoons soy sauce
- ¾ teaspoon black pepper
- ¼ teaspoon seasoned salt (or to taste)
- 3 cups crispy fried onions (divided)
Instructions
- Add thawed green beans, cream of mushroom soup, milk, soy sauce, black pepper, and seasoned salt to the crockpot. Stir to combine.
- Cover and cook on low for 4-5 hours or high for 2-3 hours.
- Stir in half of the crispy fried onions 30 minutes before serving.
- Top with remaining crispy fried onions right before serving.
Notes
- Feel free to use fresh green beans instead of frozen.
- Add cheese for a twist on the classic casserole.
Nutrition
- Serving Size: 1 cup
- Calories: 250
- Sugar: 4g
- Sodium: 750mg
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