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    Home » Recipes » Side Dishes » Green Bean Casserole

    By Amy · Published: Nov 9, 2021 · Updated: Nov 10, 2021 · This post may contain affiliate links. Please read my disclosure policy 2 Comments

    Green Bean Casserole

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    Casserole in a dish with a spoon with overlay text that reads, "green bean casserole".

    Tender green beans and savory mushrooms in a cheesy sauce topped with crispy fried onions make this delicious Green Bean Casserole unforgettable!

    Green bean casserole in a white baking dish with a spoon.

    I sure do love turkey at Thanksgiving, but give me ALL the side dishes, including a huge helping of this casserole!

    This is a delicious spin on a familiar classic using frozen green beans, onions, fresh mushrooms, cream of mushroom soup, garlic, heavy cream, Parmesan cheese, and of course – French fried onions!

    I love it because it’s simple to prepare and it’s not the “same ole” recipe everyone’s used to. It’s a must-have staple side dish at your holiday table!

    Ingredients Notes

    Overhead view of ingredients for green bean casserole.
    • Green beans – frozen green beans that have been thawed and patted dry with a paper towel.
    • Mushrooms – I used white mushrooms, but baby bella are delicious as well!
    • Onion
    • French fried onions
    • Butter – I use unsalted so that I can control the salt, but feel free to use salted.
    • Cream of mushroom soup – cream of chicken or cream of celery soup can also be used.
    • Garlic
    • Parmesan cheese – I’ve also prepared this with cheddar cheese and it’s delicious as well!
    • Salt and black pepper – feel free to adjust the amounts to your liking.
    • Heavy cream – do not substitute with milk; you will need heavy cream in this recipe to thicken the sauce.
    Green bean casserole on a round white plate beside two forks.

    How to Make it

    Following is a brief overview – please see the recipe card for ingredient amounts and full detailed instructions.

    Two images showing how to prepare sauce for easy green bean casserole.
    1. Cook onions, mushrooms and garlic in butter in a large skillet.
    2. Add soup and heavy cream. Stir to combine and bring to a simmer.
    Preparing green bean casserole in a skillet before being transferred to a baking dish.
    1. Add cheese, salt and pepper. Stir until cheese is melted.
    2. Add green beans and 1/2 cup of the French fried onions. Stir to coat.
    Three images of casserole in a dish before baking, after baking and after topping with fried onions.
    1. Transfer to a prepared baking dish and spread evenly.
    2. Bake for 25 minutes.
    3. Remove from oven and sprinkle with remaining French fried onions. Bake for an additional 5 minutes, or until onions are golden brown.
    Overhead view of cheesy green bean casserole in an oval white baking dish.

    It’s sure to be a hit!

    Make-Ahead Instructions

    Prepare casserole but do NOT top with onions. Cover baking dish tightly with foil and refrigerate for up to 2 days. Remove from refrigerator 30 to 40 minutes before ready to bake and allow to come close to room temperature. Bake as directed.

    Front view of green bean casserole on a small round white plate.

    Enjoy!

    More Holiday Side Dishes

    • Sweet Potato Soufflé
    • Homemade Cranberry Sauce
    • Easy Creamed Corn
    • Slow Cooker Collard Greens

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    Front view of a serving of green bean casserole on a white plate.

    Green Bean Casserole

    Tender green beans and savory mushrooms in a cheesy sauce topped with crispy French fried onions make this delicious green bean casserole unforgettable!
    Print Pin Rate
    Course: Side Dish
    Cuisine: American
    Keyword: green bean casserole
    Prep Time: 10 minutes
    Cook Time: 40 minutes
    Total Time: 50 minutes
    Servings: 6
    Author: Amy

    Ingredients

    • 2 tablespoons butter unsalted
    • ½ cup chopped yellow onion
    • 2 cups sliced fresh mushrooms white or baby bella
    • 1 tablespoon minced fresh garlic
    • 1 (10.5 ounce) can condensed cream of mushroom soup or cream of chicken or celery
    • 1 cup heavy cream
    • 1 cup finely shredded Parmesan cheese or cheddar
    • ½ teaspoon salt more or less, to taste
    • ½ teaspoon black pepper more or less, to taste
    • 1 (16 ounce) bag frozen cut green beans thawed and patted dry
    • 2 cups French fried onions divided

    Instructions

    • Preheat your oven to 350 degrees F. Spray a 2 quart baking dish with cooking spray. Set aside.
    • Melt butter in a large skillet over medium heat. Add onions and cook for 2 minutes, stirring often. Add mushrooms and cook until softened, stirring often (about 3 to 4 minutes). Add garlic and cook for 30 seconds, while stirring.
    • Add soup and heavy cream. Stir to combine. Bring to a simmer, then add cheese, salt and pepper. Stir until cheese is melted.
    • Add green beans and ½ cup of the French fried onions. Gently stir to coat as evenly as possible.
    • Transfer to prepared baking dish and spread evenly.
    • Bake (uncovered) for 25 minutes. Using oven mitts, carefully remove from oven and sprinkle evenly with the remaining 1 ½ cups of the French fried onions. Return to oven and bake for an additional 5 minutes, or until onions are golden brown.
    • Let stand for 10 minutes before serving (sauce will thicken as it cools).

    Notes

    • To make-ahead:  Prepare casserole but do NOT top with fried onions.  Cover baking dish tightly with aluminum foil and refrigerate for up to 2 days.  Remove from fridge 30 to 40 minutes before ready to bake and allow to come close to room temperature.  Bake as directed.

    Nutrition

    Calories: 427kcal | Carbohydrates: 20g | Protein: 12g | Fat: 34g | Saturated Fat: 19g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 7g | Trans Fat: 1g | Cholesterol: 82mg | Sodium: 978mg | Potassium: 403mg | Fiber: 3g | Sugar: 4g | Vitamin A: 1367IU | Vitamin C: 12mg | Calcium: 249mg | Iron: 2mg

    If provided, nutritional info is a courtesy, is not guaranteed and should only be considered as a guideline.

    Tried this recipe?Mention @TheBlondCook or tag #theblondcook!

    Originally published November 2015. Updated with new photos, new text and recipe revised November 2021.

    Recipe inspired by Food Network

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      Recipe Rating




    1. Amanda Brooks says

      November 25, 2015 at 6:53 am

      Anything topped with fried green onions has my name all over it! This looks delicious!

      Reply
      • Amy @ The Blond Cook says

        November 27, 2015 at 8:46 am

        Thanks so much, Amanda! Hope you and your family had a great Thanksgiving! 🙂

        Reply

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    Hey, I'm Amy Brinkley! Welcome to my online kitchen. I love cooking simple, family-friendly recipes with everyday ingredients.

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