Homemade Green Bean Casserole (2024)

Green Bean Casserole is one of my all-time favorite, classic holiday dishes. With minimal prep, tender green beans are combined with a deliciously simple and creamy mushroom sauce. Topped with wonderful crispy onions and baked until golden and bubbly, this side dish comes together in no time and will be the hit of your holiday gatherings!

Let’s get started!

Jump to Recipe Print Recipe

This post may contain affiliate links, please see our privacy policy for details.

let’s talk green bean casserole

My Green Bean Casserole is so delicious and so easy, it will make this classic holiday side dish one of your favorites, too. I keep it simple using frozen, cut green beans. Fresh green bean prep is one of my most loathed kitchen chores so I do everything I can to avoid it. Frozen green beans are wonderful and easy, too. And, since green beans aren’t in season during the holidays, in my opinion, frozen is the way to go.

Let’s talk about this mushroom sauce for just a minute. My recipe requires zero canned cream of whatever. It’s not needed and my version is way better. Mushroom, onions, and garlic are simply sautéed in butter to create a flavorful base. Add in a little flour, heavy cream, and broth and you have a sauce that is out of this world. Seriously. It’s amazing. And, easy. It’s a mushroom sauce win-win!

The topping of the casserole is also of vital importance. That lovely oniony crunch is mandatory. I use the classic fried onions from childhood and toss them with a little grated parmesan cheese.

All that’s left to do is stick that bad boy in the oven until golden and bubbly. Like I said, it’s so easy. And, just wait until you sink your teeth in it!

Green Bean Casserole Ingredients

Frozen, cut green beans
Onion
Mushrooms
Garlic
Heavy Cream
Chicken or Vegetable Stock
Fried Onions
AP Flour
Salted Butter
Kosher Salt
Fresh Ground Black Pepper

let’s cook!

Before we begin our green bean casserole, thaw out the bags of green beans. Once thawed, rinse the beans and remove any that look less than lovely. Sometimes I see a few that have a little freezer burn, so I just toss those. Nobody wants a freezer-burned bean. Nobody.

Now, over medium-high heat, sauté the onions and mushrooms in the salted butter until soft. Stir in the garlic and cook for a couple of minutes or until fragrant. Whisk in flour and cook for a couple minutes in order to get rid of the raw flour taste.

Next, slowly add your broth of choice and heavy cream. Whisk to prevent any clumps from forming and bring to a low simmer. Cook until the mixture starts to thicken a bit. Add in the thawed green beans and 1 cup of fried onions. Mix until combined and pour into a buttered 9 x 13 baking dish. Top with extra fried onions and grated parmesan (measure this with your heart). Bake at 350° until bubbly – this takes about 30 minutes.

BOOM. This Green Bean Casserole side dish is done! And, you can make this ahead and store in the freezer until you’re ready to use it!

frequently asked questions

can i make this green bean casserole gluten-free?

You can make this green bean casserole recipe gluten-free! All you need to do is swap out the flour and the fried onions. Both of which are easy substitutes.

For the flour, use your favorite gluten-free AP Flour. You can even use a little cornstarch instead of the flour.

For the fried onions, there are several brands available that are gluten-free. The one below is nothing but simply fried onions.

shop the recipe

latest recipes

Creamy Ham and Potato Soup

Easy Pasta Salad with Salami and a Parmesan Vinaigrette

Chocolate Chocolate Chip Bread Recipe

Deviled Eggs With Bacon and Jalapeño