Slow Cooker Green Bean Casserole Recipe

Introduction

This slow cooker green bean casserole is a simple, comforting twist on a classic holiday favorite. With creamy mushroom soup and crispy French fried onions, it delivers rich flavor without much effort. Perfect for busy days or festive gatherings.

Ingredients

• 2 (10.5-ounce) cans cream of mushroom soup
• ⅓ cup whole milk
• ½ teaspoon salt
• ½ teaspoon black pepper
• 3 (14.5-ounce) cans cut green beans
• 1 (6-ounce) can French fried onions
• Nonstick cooking spray

Instructions

1. Step 1: In a medium mixing bowl, combine the cream of mushroom soup, milk, salt, and black pepper. Stir well to create a smooth mixture.
2. Step 2: Gently fold in the green beans, then stir in half of the French fried onions until evenly distributed.
3. Step 3: Spray the inside of your slow cooker with nonstick cooking spray to prevent sticking.
4. Step 4: Spread the green bean mixture in an even layer at the bottom of the slow cooker. Cover with the lid and cook on low for 2 to 3 hours, or on high for about 1 hour, until the green beans are tender and the sauce is bubbly.
5. Step 5: Remove the lid and sprinkle the remaining French fried onions evenly over the top. Serve the casserole hot or warm.

Tips & Variations

• For extra flavor, try adding a teaspoon of garlic powder or onion powder to the soup mixture before cooking.
• You can substitute fresh green beans, blanched and chopped, but adjust cooking time as needed.
• Use low-sodium soup and adjust salt to taste if preferred.
• Add cooked bacon bits or shredded cheddar cheese on top for a heartier version.

Storage

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the microwave or oven until warmed through. You may want to add a splash of milk to loosen the sauce when reheating.

How to Serve

Serve this delicious recipe with your favorite sides.

FAQs

Can I make this casserole ahead of time?

Yes, you can prepare the mixture and refrigerate it for a few hours before cooking. Add the fried onions just before serving to keep them crispy.

What if I don’t have a slow cooker?

You can bake the casserole in a 350°F (175°C) oven for about 30-40 minutes until hot and bubbly, then add the fried onions on top and bake for another 5 minutes.

Slow Cooker Green Bean Casserole Recipe

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★★★★★

4.8 from 80 reviews

This Slow Cooker Green Bean Casserole is a comforting, classic side dish perfect for holiday dinners or weeknight meals. Made with tender green beans, creamy mushroom soup, and topped with crispy French fried onions, this easy casserole is cooked to perfection in a slow cooker for hassle-free preparation.

• Author: Sienna
• Prep Time: 10 minutes
• Cook Time: 1 to 3 hours (depending on slow cooker setting)
• Total Time: 1 hour 10 minutes to 3 hours 10 minutes
• Yield: 6 to 8 servings 1x
• Category: Side Dish
• Method: Slow Cooking
• Cuisine: American

Ingredients

Scale 1x2x3x

Casserole Mixture

• 2 (10.5-ounce) cans cream of mushroom soup
• ⅓ cup whole milk
• ½ teaspoon salt
• ½ teaspoon black pepper
• 3 (14.5-ounce) cans cut green beans, drained
• ½ cup French fried onions (from one 6-ounce can)

Topping

• Remaining ½ cup French fried onions (from one 6-ounce can)

Others

• Nonstick cooking spray

Instructions

1. Mix the Soup Base: In a medium mixing bowl, combine the cream of mushroom soup, whole milk, salt, and black pepper. Stir well until the mixture is smooth and evenly blended.
2. Fold in Green Beans and Onions: Add the drained green beans to the soup mixture and gently fold them together. Stir in half of the French fried onions (about ½ cup) to incorporate some crunch into the casserole base.
3. Prepare the Slow Cooker: Spray the inside of the slow cooker with nonstick cooking spray to prevent sticking. Spread the green bean mixture evenly across the bottom of the slow cooker.
4. Cook the Casserole: Place the lid on the slow cooker and cook on low heat for 2 to 3 hours or on high heat for about 1 hour. The casserole is done when the green beans are tender and the sauce is bubbly and well combined.
5. Add the Topping: Remove the slow cooker lid carefully. Sprinkle the remaining French fried onions evenly over the top of the casserole to add a crispy, golden finish.
6. Serve: Serve the casserole hot or warm as a savory side dish alongside your main course.

Notes

• Drain the cans of green beans really well to avoid a watery casserole.
• If you prefer a thicker casserole, you can add a little more cream of mushroom soup or cook uncovered for the last 15 minutes to reduce liquid.
• For a lighter version, substitute whole milk with skim milk or a milk alternative.
• This dish can be kept warm in the slow cooker on the ‘warm’ setting for up to 1 hour after cooking.
• French fried onions added before cooking will soften, so the majority should be reserved for topping just before serving to maintain crunch.

Keywords: green bean casserole, slow cooker recipes, holiday side dish, easy casserole, comfort food