How To Make Green Bean Casserole In Crock Pot [COMPLETE GUIDE]

Green bean casserole is a staple dish for gatherings and holidays. The dish bursts with the flavors of tender green beans, creamy sauce, and the comforting crunch of fried onions. While it’s often baked in the oven, using a crock pot can be a convenient and efficient way to prepare this classic dish. Slow cooking allows the flavors to meld together while freeing up oven space for other dishes. This comprehensive guide will walk you through the process of making green bean casserole in a crock pot, from ingredient selection to troubleshooting common issues.

Quick Answer: How Long To Make Green Bean Casserole In Crock Pot

Initially, the green bean casserole needs around 3-4 hours on high heat or 6-8 hours on low heat for the beans to reach the desired tenderness and for the flavors to meld.


When making green bean casserole in a crock pot, choosing the right ingredients is crucial for a successful outcome.

1. Green Beans

Select fresh or frozen green beans for the best texture and flavor. If using fresh green beans, ensure they are trimmed and cut into bite-sized pieces. If opting for frozen, make sure they are thawed before use.

2. Cream Of Mushroom Soup

The cream of mushroom soup serves as the creamy base of the casserole. Choose a high-quality, flavorful canned soup or consider making a homemade version for a more personalized touch.

3. Fried Onions

Whether you opt for store-bought fried onions or make them from scratch, they add a delightful crunch and savory depth to the casserole.

4. Additional Flavors

Other common additions include milk or cream, Worcestershire sauce, garlic powder, onion powder, and black pepper.


Before assembling the ingredients in the crock pot, careful preparation ensures a well-executed green bean casserole.

1. Greasing The Crock Pot

To prevent sticking and facilitate easier cleaning, lightly grease the bottom and sides of the crock pot with butter or cooking spray.

2. Ingredient Prep

Ensure the green beans are trimmed, cut, or thawed as per your chosen option. If using homemade cream of mushroom soup, have it prepared beforehand. If using store-bought, ensure the cans are open and ready for use.

3. Setting Up The Ingredients

Place the prepared green beans, cream of mushroom soup, and any additional flavorings in separate bowls for easy assembly.

Crock Pot Cooking Times For Green Bean Casserole

Understanding the appropriate cooking times is vital to achieving the perfect green bean casserole in your crock pot.

1. Time Considerations

  • High Heat: Cook for approximately 3-4 hours.
  • Low Heat: Cook for approximately 6-8 hours.

2. Checking For Doneness

Aim for the green beans to be tender yet still have a slight bite. The sauce should be bubbling, and the flavors well blended. Be mindful not to overcook, as the beans may become too soft.

How To Make Green Bean Casserole In Crock Pot

Now, it’s time to bring these carefully selected and prepared ingredients together for a delightful green bean casserole.

1. Layering The Ingredients

Begin by layering the prepared green beans in the greased crock pot.

2. Adding The Cream Of Mushroom Soup

Carefully spoon the cream of mushroom soup over the green beans, ensuring an even distribution.

3. Seasoning And Flavoring

Add any additional flavors such as Worcestershire sauce, garlic powder, and black pepper to enhance the taste.

4. Mixing Well

Gently stir the ingredients together to ensure the green beans are well coated in the creamy sauce and that the flavors are evenly distributed.

5. Cook Time Selection

Select the desired cook time based on whether you prefer the high-heat or low-heat method.

6. Applying The Lid

With the ingredients in place, cover the crock pot with its lid, sealing in the flavors and allowing the slow cooking process to begin.

Troubleshooting Common Issues

Despite careful preparation, common issues may arise when making green bean casserole in a crock pot. It’s important to be aware of these potential challenges and how to address them.

1. Overcooked Beans

If the beans become too soft, it’s likely that they’ve been cooked for too long. To remedy this, reduce the cooking time in future preparations.

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2. Watery Consistency

Should the casserole end up watery, it could be due to excess moisture from the green beans. To counteract this, ensure the green beans are fully thawed and well-drained before placing them in the crock pot.

3. Uneven Cooking

In some cases, the outer edges of the casserole may cook faster than the center. To combat this, consider stirring the casserole halfway through the cooking time to ensure even heat distribution.

4. Adjusting Seasoning

If the flavors are not as pronounced as desired, adjust the seasoning by adding additional salt, pepper, or any other preferred flavors, and mix well.

Preparing green bean casserole in a crock pot is a convenient and rewarding way to create this beloved dish. By selecting the right ingredients, understanding cooking times, and troubleshooting potential issues, you can achieve a delicious and comforting green bean casserole that’s sure to be a hit at any gathering. Whether it’s a holiday feast or a cozy family dinner, the slow-cooked perfection of green bean casserole in a crock pot is bound to satisfy and impress.

Achieving Perfect Texture

Green bean casserole is a classic dish that is often enjoyed during holiday gatherings or as a comforting side dish. Traditionally, it is made in the oven, but did you know that you can make a delicious green bean casserole in a crock pot as well? Using a crock pot for this dish is not only convenient but also helps to infuse the flavors in a slow and steady manner, resulting in a perfectly cooked and flavorful casserole.

One of the key elements of a great green bean casserole is achieving the perfect texture. You want the green beans to be cooked until tender but still have a slight crispness. To achieve this in a crock pot, it is important to choose the right cooking time and temperature.

When cooking green bean casserole in a crock pot, it is best to cook it on low heat. This allows the green beans to cook slowly and evenly, preventing them from becoming mushy or overcooked. Cooking on low heat also helps to retain the vibrant green color of the beans.

The cooking time can vary depending on the size and thickness of the green beans. As a general guideline, cook the casserole on low for 4 to 6 hours. You can check for doneness by piercing the green beans with a fork. They should be tender but still have a slight bite to them.

If you prefer your green beans to be softer, you can cook them for a longer period of time. However, be cautious not to overcook them as they can become mushy and lose their texture.

Flavor Infusion

Another important aspect of a delicious green bean casserole is the infusion of flavors. The crock pot is a perfect tool for this as it allows the flavors to meld together slowly over time, resulting in a more delicious and well-rounded dish.

To enhance the flavors of your green bean casserole, start by sautéing some onions and garlic before adding them to the crock pot. This step helps to release the aromas and flavors of the onions and garlic, which will add depth to the casserole.

In addition, consider adding other flavor-enhancing ingredients such as herbs, spices, or even bacon. These ingredients will not only add their unique flavors but also complement the taste of the green beans.

Herbs like thyme, rosemary, or parsley can add a subtle earthiness to the dish, while spices like paprika, cayenne pepper, or nutmeg can add a hint of warmth and complexity. Adding some cooked and crumbled bacon will bring a smoky and savory note to the casserole.

The flavors will continue to develop and intensify as the casserole cooks in the crock pot, resulting in a burst of deliciousness when you finally dig in.


The aroma of a dish can greatly enhance the overall experience of enjoying it. When making green bean casserole in a crock pot, the slow cooking process helps to release and intensify the aromas, creating a tantalizing atmosphere in your kitchen.

As mentioned earlier, sautéing onions and garlic before adding them to the crock pot not only enhances the flavors, but it also fills your kitchen with a delightful aroma. The combination of these aromatics with the green beans creates a mouth-watering smell that will have your family and guests eagerly anticipating their meal.

To further enhance the aroma, consider adding some aromatic ingredients like thyme, rosemary, or even a splash of white wine. These fragrant additions will infuse the casserole with enticing scents that will waft tantalizingly throughout your home.

Cooking Techniques

When making green bean casserole in a crock pot, there are a few cooking techniques that can help to ensure success.

Firstly, it is important to properly layer the ingredients in the crock pot. Start by adding the sautéed onions and garlic to the bottom of the crock pot. Next, add the green beans, followed by any additional ingredients like herbs, spices, or bacon. Finally, pour the sauce over everything, making sure to evenly distribute it.

This layering technique helps to ensure that the flavors are evenly distributed throughout the casserole and that all the ingredients cook properly.

Secondly, avoid overfilling the crock pot. It is important to leave some space at the top to allow for proper circulation of heat and steam. Overcrowding the crock pot can result in uneven cooking and can also cause the dish to become too watery.

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Finally, resist the temptation to stir the casserole too frequently. Unlike cooking on the stovetop, where stirring ensures even cooking, in a crock pot, it is best to leave the ingredients undisturbed. Stirring can cause the green beans to break apart and become mushy.

Crock Pot Tips For Green Bean Casserole

To make the perfect green bean casserole in a crock pot, here are some additional tips to keep in mind:

  1. Use fresh green beans whenever possible. Fresh green beans are more flavorful and have a better texture than canned or frozen beans. If using frozen beans, thaw them before cooking to ensure even cooking.

  2. Blanch the green beans before adding them to the crock pot. Blanching involves briefly boiling the green beans and then immediately plunging them into ice water to stop the cooking process. This step helps to retain the vibrant green color of the beans.

  3. Use a thickener like flour or cornstarch to create a creamy and thick sauce. Add the thickener towards the end of the cooking time and allow it to cook for an additional 15 to 30 minutes to thicken the sauce.

  4. If you prefer a crunchy topping on your casserole, transfer it to a baking dish after it is done cooking in the crock pot. Sprinkle some breadcrumbs or French-fried onions on top and broil in the oven for a few minutes until golden brown.

  5. Experiment with different cheeses to add a cheesy and gooey element to your casserole. Cheddar, Swiss, or Gruyere are all great options to consider.

  6. Serve the green bean casserole as soon as it is done cooking to ensure that it stays warm and retains its texture. If you need to keep it warm for an extended period before serving, switch the crock pot to the warm setting and cover it with a lid.

Creative Crock Pot Green Bean Casserole Recipes

Now that you have learned the key techniques and tips for making green bean casserole in a crock pot, let’s explore some creative recipes to try out in your own kitchen:

  1. Bacon and Mushroom Green Bean Casserole: Sauté diced bacon and sliced mushrooms before adding them to the crock pot with the green beans. This adds a smoky and earthy flavor to the casserole.

  2. Cheesy Green Bean Casserole: Mix shredded cheddar cheese into the casserole before cooking it in the crock pot. The melted cheese adds a gooey and creamy texture to the dish.

  3. Creamy Herb Green Bean Casserole: Add a combination of fresh herbs like thyme, rosemary, and parsley to the casserole. This infuses the dish with a delightful herby flavor.

  4. Spicy Green Bean Casserole: Add a pinch of cayenne pepper or some diced jalapeños to the casserole to give it a spicy kick. This variation is perfect for those who enjoy a little heat in their dishes.

  5. Garlic Parmesan Green Bean Casserole: Sauté minced garlic before adding it to the crock pot with the green beans. Mix in some grated Parmesan cheese for a cheesy and garlicky twist on the classic casserole.

Feel free to experiment with different ingredients and flavors to create your own unique version of green bean casserole in a crock pot.


Making green bean casserole in a crock pot is a convenient and delicious alternative to the traditional oven-baked version. The crock pot allows for slow cooking, resulting in perfectly tender green beans with enhanced flavors and aromas.

By following the tips and techniques mentioned in this article, you can achieve the perfect texture, flavor infusion, and aroma in your green bean casserole. Don’t be afraid to get creative and experiment with different ingredients to personalize the dish to your liking.

So next time you’re craving green bean casserole, give the crock pot method a try. Your taste buds will thank you!


What Ingredients Do I Need To Make Green Bean Casserole In A Crock Pot?

To make green bean casserole in a crock pot, you will need a can of condensed cream of mushroom soup, milk, Worcestershire sauce, garlic powder, salt, pepper, chopped onions, sliced mushrooms, frozen green beans, and French fried onions.

Can I Use Fresh Green Beans Instead Of Frozen Ones?

Yes, you can use fresh green beans if you prefer. Simply blanch them in boiling water for a few minutes before adding them to the crock pot.

How Long Does It Take To Cook Green Bean Casserole In A Crock Pot?

Cook the green bean casserole on low heat for 4 to 6 hours or on high heat for 2 to 3 hours, depending on how fast your crock pot cooks.

Can I Use A Different Type Of Condensed Soup?

You can experiment with different types of condensed soup to add a different flavor to your casserole. Cream of celery soup or cream of chicken soup are good options.

Can I Make Green Bean Casserole In Advance And Reheat It In A Crock Pot?

Yes, you can make the casserole in advance and reheat it in the crock pot before serving. Simply cover the crock pot and cook on low heat for 1 to 2 hours, stirring occasionally.