Slow Cooker Green Bean Casserole

Name: Slow Cooker Green Bean Casserole
Prep time: 15 min
Cook time: 240 min
Total time: 255 min
Yield: 8 servings
Cuisine: American
Ingredients: 500 g fresh or frozen green beans (trimmed and cut into bite-sized pieces); 1 cup sliced mushrooms; 1 onion (finely chopped); 2 cloves garlic (minced); 1 can cream of mushroom soup (about 284 ml); 1/2 cup milk; 1 cup shredded cheddar cheese; 1 teaspoon soy sauce; 1/4 teaspoon black pepper; 1 1/2 cups crispy fried onions

255 min 8 servings Easy

All Recipes

A classic green bean casserole made easy with a slow cooker, perfect for holiday gatherings or a comforting family dinner.

Prep

15 min

Cook

240 min

Total

255 min

Servings

Difficulty

Easy

Green bean casserole is a beloved side dish that brings comfort and warmth to any meal. Traditionally served during holiday gatherings, this dish combines tender green beans with a creamy sauce and a crunchy topping. This slow cooker version simplifies the process, allowing you to focus on other meal preparations without sacrificing flavour or texture. It's perfect for those who love the classic taste but want the convenience of hands-off cooking. Whether you're hosting a large family dinner or simply want a comforting side for a weekday meal, this slow cooker green bean casserole is sure to please.

Instructions

Prepare the green beans

If using fresh green beans, blanch them in boiling water for 3-4 minutes until bright green and tender-crisp. Drain and set aside.

Pro tip: Blanching helps maintain the beans' vibrant colour and crisp texture.

Cook the aromatics

In a skillet over medium heat, sauté the onions and garlic until soft, about 5 minutes. Add the mushrooms and cook for an additional 3 minutes.

Pro tip: Cooking the aromatics enhances their flavour, adding depth to the casserole.

Mix the sauce

In a large bowl, combine the cream of mushroom soup, milk, cheese, soy sauce, and pepper. Stir in the sautéed onions, garlic, and mushrooms.

Pro tip: Mix well to ensure an even distribution of flavours.

Assemble the casserole

Place the green beans in the slow cooker, pour the sauce mixture over them, and stir to coat.

Pro tip: Ensure the beans are evenly coated with the sauce for uniform cooking.

Cook the casserole

Cover and cook on low for 4-5 hours, or until the beans are tender.

Pro tip: Avoid opening the lid frequently to maintain a stable cooking temperature.

Add the topping

Just before serving, sprinkle the crispy fried onions over the casserole. Serve warm.

Pro tip: Adding the onions last keeps them crispy and adds a delightful texture contrast.

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Tips & Tricks

Use fresh or frozen green beans for the best texture and taste.
Pre-cook the onion and mushroom mixture to deepen the flavour.
Top with crispy onions just before serving for extra crunch.

Frequently Asked Questions

Can you make green bean casserole in a slow cooker?

Yes, you can make green bean casserole in a slow cooker by combining all ingredients and cooking on low for 4-5 hours.

How long does it take to cook green bean casserole in a slow cooker?

It takes about 4-5 hours on low heat to cook green bean casserole in a slow cooker.

What are the ingredients for slow cooker green bean casserole?

Ingredients include green beans, mushroom soup, milk, cheese, onions, garlic, mushrooms, soy sauce, pepper, and crispy fried onions.

How many calories are in a serving of green bean casserole?

A serving of this slow cooker green bean casserole contains approximately 210 calories.

Can you prepare green bean casserole ahead of time?

Yes, you can prepare the casserole a day in advance and reheat it in the slow cooker on low before serving.

Serving Suggestions

Serve this slow cooker green bean casserole alongside roasted meats or other festive dishes for a complete meal. It pairs beautifully with turkey, ham, or even a roast chicken. You can prepare the casserole a day in advance and simply reheat it in the slow cooker on the low setting before serving. Store any leftovers in an airtight container in the fridge for up to three days.