Crockpot Green Bean Casserole Recipe {Video}

This Crockpot Green Bean Casserole Recipe tastes amazing and is so easy to make. You can make it right in the slow cooker saving you dishes and stress.

Crock Pot Green Bean Casserole

This year my goal is to make Thanksgiving as calm and stress-free as possible. I am planning on making a ton of crockpot recipes including this Crock Pot Green Bean Casserole!

One of the great things about this Slow Cooker Green Bean Casserole recipe is you can get all of the ingredients ahead of time, so you are not worrying about running to the store last minute.

You can pick up some bags of frozen green beans when you find them on sale and have them ready for Thanksgiving cooking!

It’s always my goal to stock up my freezer in the weeks leading up to Thanksgiving with all the necessary staples. I love getting everything while it is on sale and not worrying about it going bad.

The freezer has become my good friend during the holidays and year-round. I freeze a little bit of everything so we can enjoy it year-round.

If you love ham and turkey, this time of the year is perfect to stock up on a few. I stick them in my freezer when I can grab them on sale, so I have them a few months later when they return to full price.

We hope this Crock Pot green bean casserole recipe makes your Thanksgiving prep easier. There is no need to worry about the stove-top or oven space with this recipe.

Ingredients

Here is a quick overview of the simple ingredients needed to make an epic CrockPot Green Bean Casserole! The printable recipe card at the bottom of the post includes specific measurements and step-by-step instructions.

• Green Beans
• Cream of Mushroom Soup
• French Fried Onions
• Cheddar Cheese
• Milk
• Black Pepper
• Salt to Taste

Optional Add-Ins: Parmesan Cheese, Garlic Powder, Worcestershire Sauce 

Equipment Needed

Crockpot: We suggest using a Crockpot with a digital timer that automatically switches the slow cooker to warm after a set time to help ensure your dinner cooks perfectly, and you don't have to stress about when it’ll finish cooking.

• Kitchen Spoon/Stirring Utensil
• Serving Dish/Bowl
• Non-Stick Cooking Spray

How to Make CrockPot Green Bean Casserole

I've included complete instructions in the printable recipe card at the bottom of the post, but here's a quick version.

1. Combine the cream of mushroom soup, milk, and seasonings in your slow cooker or a measuring cup. Stir to combine.
2. Add the green beans, soup mixture, cheddar, and half of the french-fried onions. Stir together.
3. Cover and cook on low for 2.5 hours.
4. Remove the lid and stir everything together. Add the rest of the French fried onions, cover, and keep warm to serve. 

 

Preparation and Storage

Make-Ahead: This Crock Pot Green Bean Casserole is make-ahead-friendly! It only takes two and a half hours to cook, meaning you can start it later in the day as you work through your other Thanksgiving CrockPot recipes! Consider using a notepad to list each dish's start and end times if you have many items on the menu and need a system that’ll help you prioritize what order to cook everything.

Storage: Refrigerate any leftovers in an airtight container for up to five days.

Freezing/How to Freeze: Freeze any leftovers of this Thanksgiving side dish in an airtight, freezer-safe container and enjoy them within three months.

How to Reheat: Reheat leftover portions in the microwave or slow cooker, depending on how many servings you need to prepare. Let frozen leftovers thaw overnight in your fridge to ensure they heat up evenly.

 

Recipe Variations

Substitutions:

We used canned green beans, but you can also use frozen green beans. Be sure to thaw them beforehand!

If you are not a fan of mushrooms, you can make this recipe with any cream of soup. I tend to stick to cream of mushroom soup because my husband loves the flavor. I know many people who use cream of cheddar or cream of chicken soup for a different taste.

Vegetarian Option: This holiday side dish is 100 percent vegetarian!

Vegan Option: Vegans should replace the grated cheddar cheese and milk with plant-based substitutes to make this recipe vegan.

Gluten-Free: Gluten-free eaters should look for a gluten-free label on the cream of mushroom soup and French fried onions to make this recipe safe for a gluten-free diet, as both ingredients contain flour.

Alcohol-Free Option: We don’t use alcohol in this recipe, but this Green Bean Casserole recipe uses dry white wine if you’re considering a boozy take on this classic Thanksgiving side dish!

Smaller Serving Size + Larger Group/More Servings: The written recipe makes eight servings. Scale it up or down to your desired yield, keeping in mind that you may need to work in batches according to your slow cooker’s capacity if you scale up!

Make It Spicy: Add a few dashes of cayenne or chipotle powder for a green bean casserole with a kick!

Sugar-Free: The written recipe contains 8 grams of sugar per serving. Use green beans and cream of mushroom soup with no sugar added to make it sugar-free.

 

Tips for the Best CrockPot Green Bean Casserole

• I like to combine the cream of mushroom soup, milk, and pepper in a separate bowl to ensure they are well mixed together before adding them to the green beans.
• Make sure to spray your slow cooker with non-stick spray to make clean-up a little easier.
• Depending on how you lay out your Thanksgiving spread, you can serve the CrockPot Green Bean Casserole directly from the CrockPot or transfer it to a serving dish. If you are moving it to a serving dish, I would wait to add the last half of the French fried onions so you can add them right before serving.
• Nutrition information, including calories, protein, calcium, carbohydrates, fiber, vitamin c, potassium, cholesterol, sodium, trans fat, monounsaturated fat, polyunsaturated fat, and more, will vary depending on the products used.

What to Serve with Crock Pot Green Bean Casserole

This oven-free take on classic green bean casserole is made entirely in your slow cooker, yielding a fantastic side dish for any special occasion with minimal dishware required! Here are some menu planning suggestions for your next Easter, Christmas, or holiday feast.

Sides: Pineapple Stuffing, Carrot Soufflé, Creamed Corn Casserole, Crock Pot Mashed Cauliflower, Crock Pot Candied Sweet Potatoes, Garlic Herb Mashed Potatoes, Jiffy Cornbread with Sour Cream, Sweet Potato Casserole with Marshmallows

Main Dishes: Crock Pot Turkey, Crock Pot Bourbon Maple Pork Loin, Crock Pot Guinness Corned Beef & Cabbage, Crock Pot Chicken & Stuffing, Crock Pot Orange Glazed Ham, Crock Pot Coke Glazed Ham, Bourbon Baked Ham

Desserts: Eggnog Cookies, 4 Ingredient Christmas Crack, Easy Holiday Reindeer Chow, Church Window Cookies, No Bake Cherry Cheesecake Dip, Easy Eggnog Cake with Eggnog Glaze, Ambrosia Salad, Chocolate Chip Cheese Ball, Cranberry Fluff Salad

Drinks: Jelly Donut Shot, Pineapple Upside Down Cake Shot, Bay Breeze Cocktail, RumChata Pudding Shots, Pomegranate Breeze Martini, Mulled Cherry Cider Cocktail

When to Serve

• Dinner
• Potlucks
• Easter
• Thanksgiving Dinner
• Christmas
• Any Holiday Dinner!
• Great side for stews

Crock Pot Holiday Recipes

Crock Pot Ham

Crock Pot Sweet Potato Casserole

Crock Pot Macaroni and Cheese

Crock Pot Garlic Potatoes

Keep an eye out for more Thanksgiving dishes that begin with your CrockPot!  We make as many holiday dishes as possible in the slow cooker.

We are working on even more CrockPot vegetarian meals to help everyone have a great meal.

Take advantage of our best side dishes for ham! We made a big list of slow cooker side dishes to make life a little easier. 

Do you love recipes? Check out our copycat recipes, dessert recipes, and our CrockPot Recipes.

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Recipe originally shared on November 17, 2013. Updated September 2020.