Name: Crockpot Green Bean Casserole Recipe
Prep time: 10 min
Cook time: 2 h
Total time: 2 h 10 min
Yield: 8
Cuisine: American
Ingredients: 2 (10.5 oz) cans cream of mushroom soup; ½ cup whole milk; ¼ cup low-sodium soy sauce; ½ teaspoon freshly ground black pepper; 2 cups French fried onions, divided; 1 cup freshly grated parmesan cheese, divided; ½ cup freshly grated cheddar cheese; 3 (10 oz) bags whole frozen green beans, ends cut off

JTR

Looking for a Thanksgiving side dish that’s a guaranteed hit or an easy Christmas side that’ll impress everyone? This Crockpot Green Bean Casserole is your go-to!

It’s one of those classic casserole recipes that everyone loves, and it’s perfect for your holiday dinner.

This vegetarian side is a comforting, homemade recipe that you can make ahead of time, fitting seamlessly into your Thanksgiving crockpot recipes collection.

A close-up of Crockpot Green Bean Casserole in a slow cooker, showing the creamy green beans and crispy fried onions being scooped with a wooden spoon.

Crockpot Green Bean Casserole Ingredients

Each ingredient in this dish plays a crucial role in creating a comforting, flavorful casserole. Here’s why each is a must:

Cream of Mushroom Soup: Adds creamy, savory goodness.
Whole Milk: Ensures the casserole is rich and smooth.
Soy Sauce: Brings a touch of umami to deepen the flavors.
Black Pepper: A simple spice to enhance overall taste.
French Fried Onions: Provides that signature crunch and flavor.
Parmesan Cheese: Adds a sharp, nutty taste.
Cheddar Cheese: Melts beautifully for a gooey texture.
Green Beans: The star of the dish, bringing freshness and crunch.

A bowl of Crockpot Green Bean Casserole topped with crispy fried onions, with a spoon resting inside the bowl and a light background.

Tips and Notes

Prep Ahead: Follow steps 1 and 2, then refrigerate overnight (or up to 3 days). Add 30 minutes to cooking time when ready to slow cook.
Crunchy Onions: To keep the fried onions crunchy, add them just before serving.
Frozen Green Beans: If using frozen, thaw them first for best results.
Soup Swap: Not a mushroom fan? Substitute with cream of celery or cream of chicken soup. Want extra mushrooms? Add 1 cup of sliced portobellos with the green beans.

Close-up of a bowl of Crockpot Green Bean Casserole, showcasing the creamy texture, green beans, and crunchy fried onions, with a slow cooker in the background.

How to Make Crockpot Green Bean Casserole

Add the cream of mushroom soup, whole milk, soy sauce, and black pepper to your slow cooker and stir to combine.
Stir in half of the French fried onions, half of the parmesan cheese, and all of the cheddar cheese.
Add the green beans and stir well.
Sprinkle the remaining parmesan cheese on top, followed by the rest of the French fried onions.
Cover with the lid and cook on low for 3 hours or on high for 2 hours, until the onions are golden brown and the edges are bubbling.
Serve and pour some french fried onions on top of the casserole.

A white casserole dish filled with creamy Crockpot Green Bean Casserole topped with crispy fried onions, with holiday decorations blurred in the background.

Storage

Refrigerate: Store leftovers in an airtight container for up to 3 days.
Freeze: Place in a freezer-safe container and freeze for up to 1 month.
Reheat: Warm in the microwave or oven until heated through.

A bowl of Crockpot Green Bean Casserole with green beans and crunchy fried onions, set on a marble countertop with fresh green onions in the background.

Serving Suggestions

Green bean casserole pairs perfectly with holiday favorites like candied sweet potatoes, honey glazed carrots, make-ahead gravy, mashed potatoes, creamed corn, cheesy roasted broccoli, and cranberry sauce.

For the main course, it complements dishes like Easy Pork Roast, classic meatloaf, Easy dry brined Turkey, a delicious brown sugar dijon glazed pork loin, or succulent braised lamb shank.

This Crockpot Green Bean Casserole is not just a side dish; it’s a holiday classic that brings comfort and joy to any family dinner.

Enjoy the ease of a one-pot meal that’s rich in flavor and tradition!

8 servings

Crockpot Green Bean Casserole Recipe

Prep Time: 10 minutes

Cook Time: 2 hours

Total Time: 2 hours 10 minutes

Crockpot Green Bean Casserole is the perfect holiday side dish! Easy to prepare, this comforting homemade recipe combines creamy mushroom soup, savory cheeses, and crispy fried onions with fresh green beans, making it a must-have for Thanksgiving and Christmas dinners.

Ingredients

2 (10.5 oz) cans cream of mushroom soup
½ cup whole milk
¼ cup low-sodium soy sauce
½ teaspoon freshly ground black pepper
2 cups French fried onions, divided
1 cup freshly grated parmesan cheese, divided
½ cup freshly grated cheddar cheese
3 (10 oz) bags whole frozen green beans, ends cut off

Instructions

Add the cream of mushroom soup, whole milk, soy sauce, and black pepper to your slow cooker and stir to combine.
Stir in half of the French fried onions, half of the parmesan cheese, and all of the cheddar cheese.
Add the green beans and stir well.
Sprinkle the remaining parmesan cheese on top, followed by the rest of the French fried onions.
Cover with the lid and cook on low for 3 hours or on high for 2 hours, until the onions are golden brown and the edges are bubbling.
Serve and pour some french fried onions on top of the casserole.

Notes

Prep Ahead: Follow steps 1 and 2, then refrigerate overnight (or up to 3 days). Add 30 minutes to cooking time when ready to slow cook.

Crunchy Onions: To keep the fried onions crunchy, add them just before serving.

Frozen Green Beans: If using frozen, thaw them first for best results.

Soup Swap: Not a mushroom fan? Substitute with cream of celery or cream of chicken soup. Want extra mushrooms? Add 1 cup of sliced portobellos with the green beans.

Nutrition Information

Yield

Serving Size

1
Amount Per Serving Calories 242Total Fat 14gSaturated Fat 5gTrans Fat 0gUnsaturated Fat 7gCholesterol 22mgSodium 1021mgCarbohydrates 19gFiber 1gSugar 5gProtein 10g