• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

This Wife Cooks™

  • About
    • Contact
    • Work With Me
    • JOIN MY NEWSLETTER
  • Holidays
    • Vegan and Vegetarian Thanksgiving Recipes
    • Vegan & Vegetarian Christmas Recipes
    • New Year’s Eve and New Year’s Day
    • St. Patrick’s Day
    • Easter
    • Cinco de Mayo
    • 4th of July
    • Oktoberfest
    • Halloween
    • Game Day
    • Happy Birthday
  • Collections
    • Appetizers
    • Breakfast & Brunch
    • Dessert
    • Lunch & Dinner
    • Side Dishes
    • Snacks
  • Popular
    • Breads
    • Casseroles & Comfort Food
    • Cookies & Cakes
    • Dressings & Dips
    • Kid Favorites
    • Pasta
    • Rice & Grains
    • Soups, Chilis, & Stews
    • Salads
    • Sandwiches, Tacos, & Burgers
    • Baking
    • Vegan
    • Vegetarian
  • Recipe Index
  • Navigation Menu: Social Icons

    • Facebook
    • Instagram
    • Pinterest
    • YouTube
Home » Popular » Casseroles » Slow Cooker Green Bean Casserole

Slow Cooker Green Bean Casserole

October 15, 2024Leave a Comment

Pin
Share
Share
25Shares
View Recipe
Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish. via @thiswifecooks

Slow Cooker Green Bean Casserole ~

Tender green beans in a creamy mushroom sauce, topped with crispy fried onions.

Serve with ​Roasted Vegetable Wellington and Savory Mashed Sweet Potatoes.

Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.

Table of Contents

Toggle
  • Crock Pot Green Bean Casserole
  • Ingredients for Slow Cooker Green Bean Casserole
  • ​Ingredient Notes
  • How to Make Slow Cooker Green Bean Casserole
  • FAQ
  • Storage
  • More Recipes You’ll Love!
  • Follow This Wife Cooks on Flipboard | Instagram | Facebook | Pinterest | Shop
  • Slow Cooker Green Bean Casserole 
    • Ingredients
    • Instructions
    • Nutrition

Crock Pot Green Bean Casserole

Classic green bean casserole made even easier! This slow cooker version brings all the traditional flavors of green bean casserole while freeing up valuable oven space on Thanksgiving Day. With minimal prep and just a few simple ingredients, you can have this comforting side dish cooking while you focus on the main course.

Using the slow cooker ensures the green beans stay tender, and the creamy mushroom sauce has time to develop rich flavors. Topped with crispy fried onions just before serving, this dish is a crowd-pleaser that requires little hands-on attention. It’s a great way to simplify your holiday cooking without sacrificing taste.

Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.

Ingredients for Slow Cooker Green Bean Casserole

You will need the following:

  • 2 (10.75 ounce) cans Cream of Mushroom Soup
  • 1/2 teaspoon garlic powder
  • ​1/2 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 1 1/2 pounds frozen green beans, thawed
  • 1 cup Parmesan cheese, shredded
  • 1 cup French Fried Onions, divided

​Ingredient Notes

  • Cream of Mushroom Soup – This is the base for the creamy sauce. I used a vegetarian canned soup for convenience, but you can swap for plant-based Homemade Cream of Mushroom Soup. Cream of Celery soup can also be used for a different flavor.
  • Seasonings – A simple blend of garlic powder, salt, and black pepper adds depth to the sauce.
  • Green Beans – Frozen, thawed green beans offer the best results and texture for this dish. Fresh green beans work but may require additional cooking time. Canned green beans are softer and may not hold up as well in the slow cooker.
  • Parmesan Cheese – Adds a savory richness to the casserole. For an extra cheesy twist, try a mix of Parmesan and cheddar cheese.
  • French Fried Onions – These crispy yellow onions add crunch on top. Store-bought is convenient, but if you have extra time, Homemade French Fried Onions are the easiest way to elevate this simple dish.

How to Make Slow Cooker Green Bean Casserole

Step 1: Prep the slow cooker. Spray a 6-quart slow cooker with non-stick cooking spray or line it with a slow cooker liner.

Step 2: Mix the ingredients. In the base of the slow cooker, whisk together the cream of mushroom soup, garlic powder, salt, and black pepper.

Step 3: Add the beans and cheese. Stir in the thawed green beans, Parmesan cheese, and half of the French fried onions.

Step 4: Cook. Secure the lid onto the slow cooker and cook on high for 2-3 hours or on low for 3-4 hours. The casserole is done when it’s hot and bubbly. If needed, switch to the warm setting until ready to serve.

Step 5: Top and serve. Just before serving, sprinkle the remaining French fried onions over the top of the casserole and serve warm.

Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.

FAQ

  • Can I use fresh green beans? Yes, but fresh green beans may require a bit more cooking time. You’ll want to blanch them first to ensure they become tender in the slow cooker.
  • Can I substitute the Parmesan cheese? Absolutely! Cheddar, mozzarella, or even a mix of cheeses work well in this casserole.
  • Is there a way to make this vegan? Yes! Use a vegan cream of mushroom soup and plant-based Parmesan cheese.
  • Can I make this dish ahead of time? Yes, you can assemble the casserole up to a day in advance. Store it in the refrigerator and cook as directed when you’re ready.
  • How can I get the onions extra crispy? f you want super crispy onions, broil the casserole for 3-5 minutes after transferring it to a baking dish, just before serving.

Storage

  • Store leftover green bean casserole in an airtight container in the refrigerator.
Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.

More Recipes You’ll Love!

  • Vegan Turkey Roast​
  • Candied Sweet Potatoes
  • Vegan Cream of Chicken Soup Substitute​
  • No Mushroom Green Bean Casserole​
  • Fresh Garlic Green Beans​

Follow This Wife Cooks on Flipboard | Instagram | Facebook | Pinterest | Shop

Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.
Slow Cooker Green Bean Casserole ~ Tender green beans in a creamy mushroom sauce, topped with crispy fried onions. Easy vegetarian side dish.

Slow Cooker Green Bean Casserole 

Tender green beans in a creamy mushroom sauce, topped with crispy fried onions.
No ratings yet
Print Pin Rate
Course: Side Dish
Cuisine: American, Southern
Keyword: Christmas, comfort food, slow cooker, Thanksgiving, vegetarian
Prep Time: 10 minutes minutes
Cook Time: 2 hours hours
Total Time: 2 hours hours 10 minutes minutes
Servings: 8
Calories: 142kcal
Author: Holly Gray
Prevent your screen from going dark

Ingredients

  • 2 10.75 ounce cans cream of mushroom soup
  • 1/2 teaspoon garlic powder
  • ​1/2 teaspoon salt
  • 1/2 teaspoon ground black pepper
  • 1 1/2 pounds frozen green beans thawed
  • 1 cup Parmesan cheese shredded
  • 1 cup French fried onions divided

Instructions

  • Spray a 6-quart slow cooker with non-stick cooking spray or line it with a slow cooker liner.
  • In the base of the slow cooker, whisk together the cream of mushroom soup, garlic powder, salt, and black pepper.
  • Stir in the thawed green beans, Parmesan cheese, and half of the French fried onions.
  • Secure the lid onto the slow cooker and cook on high for 2-3 hours or on low for 3-4 hours. The casserole is done when it’s hot and bubbly. If needed, switch to the warm setting until ready to serve.
  • Just before serving, sprinkle the remaining French fried onions over the top of the casserole and serve warm.

Nutrition

Calories: 142kcal | Carbohydrates: 11g | Protein: 8g | Fat: 8g | Saturated Fat: 4g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Cholesterol: 10mg | Sodium: 515mg | Potassium: 240mg | Fiber: 2g | Sugar: 3g | Vitamin A: 685IU | Vitamin C: 10mg | Calcium: 182mg | Iron: 1mg
Tried this recipe?Mention @thiswifecooks or tag #thiswifecooks!

​

​

Pin
Share
Share
25Shares

Related Posts:

  • Slow Cooker Baked Potatoes ~ Cooking potatoes in the crockpot is an easy way to make perfectly fluffy and tender baked potatoes every time!
    Slow Cooker Baked Potatoes
  • Garlic and Chive Mashed Potatoes ~ Creamy mashed potatoes infused with garlic and fresh chives. Easy side dish for the holiday table!
    Garlic and Chive Mashed Potatoes
  • Herb Roasted Sweet Potatoes ~ Roasted sweet potatoes with garlic, thyme, and parmesan. Easy and savory side dish for the holiday table!
    Holiday Roasted Sweet Potatoes

Filed Under: Casseroles, Comfort Food, Side Dishes, Vegan, Vegan & Vegetarian Christmas Recipes, Vegan and Vegetarian Thanksgiving Recipes, Vegetarian, Winter Flavors Tagged With: casserole, Christmas, comfort food, slow cooker, Southern, Thanksgiving, vegetarian

Previous Post: « Cheesy Ranch Cauliflower
Next Post: Pumpkin Cheesecake Bars »

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




Primary Sidebar

Welcome!

Hi, I’m Holly! I’m a busy wife and mom. I love cooking for my family and sharing creative and flavorful plant-based recipes.

Here, you will find everything from quick and easy dinners to comfort food classics and holiday favorites.

  • Facebook
  • Instagram
  • Pinterest

Recent Posts

  • Asian Sesame Dressing
  • White Bean Burgers
  • Japanese Spinach Salad
  • Roasted Zucchini Pasta

Footer

Copyright © 2025 Rise and Shine Media, LLC. All rights reserved. Privacy Policy .Terms of Service .

This Wife Cooks™Logo Header Menu
  • About
    • Contact
    • Work With Me
  • Holiday
  • Collections
    • Appetizers
    • Breakfast & Brunch
    • Dessert
    • Lunch & Dinner
    • Side Dishes
  • Popular

Rate This Recipe

Your vote:




A rating is required
A name is required
An email is required