This post may contain affiliate links. Please read our disclosure policy.

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

Green Bean Casserole

A homemade green bean casserole made from scratch with a creamy sauce and crispy fried onions. A classic old-fashioned Thanksgiving side dish recipe. 

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

Growing up, I always had the green bean casserole straight from the back of the cream of mushroom soup can. There had to be a better way! I wanted to make a homemade from scratch green bean casserole that had all of the flavors, but used fresh ingredients. After some experimenting, I have to say that we were blown away by these creamy green beans with crispy onions! You will definitely forget you are eating a vegetable.

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

The key to a killer green bean casserole is to create layers upon layers of flavors. This all begins with sauteeing onions in a good amount of butter in order to caramelize them. Once the onions are tender and golden, the mushrooms are added to the pan to bring out their natural nutty flavors. Garlic is the ultimate flavor enhancer, bringing a punch to the sauce.

The cream sauce is made with half-n-half, spices, and flour or cornstarch to thicken it.  It is a simple cream sauce, but the caramelized onions, mushrooms, garlic, and spices make it taste so savory.

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

The star ingredient is definitely the green beans. I use fresh green beans in this recipe and just snap off the stems. It is important to cook the green beans in boiling water before baking them with the sauce. This will give them the right amount of crispness! If you want the green beans to be a little more bite-size, I suggest cutting them in half.

If you want to use frozen or canned green beans, go for it! Canned green beans don’t need to be cooked ahead of time.

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

The green beans and creamy white sauce are topped with crisp fried onions. This is what brings another textural element to the dish while adding some salty goodness. These fried onions are addicting!

This Green Bean Casserole will be a huge hit at your Thanksgiving feast! Even if you don’t love green beans, you will love this green beans side dish.

Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

If you are looking for more amazing Thanksgiving Recipes, click the recipes below:

I love to hear from you! If you make this recipe, please be sure to leave a comment and give this recipe a rating. Also, tag me on Instagram @modern_honey so I can see your creations. Be sure to tag your photo using the hashtag #modernhoney. It’s one of my favorite things seeing you make these recipes in your own kitchen. Thank you for following along! I truly do have the greatest readers. FOLLOW ME ON:   INSTAGRAM — FACEBOOK — PINTEREST

 Homemade Green Bean Casserole made from scratch. The BEST Green Bean Casserole Recipe. The perfect Thanksgiving side dish. www.modernhoney.com #greenbeans #greenbeancasserole #thanksgiving #sidedish #vegetables #thanksgivingrecipes

Pin this now to find it later

Pin It
4.99 from 130 votes

Homemade Green Bean Casserole

A homemade green bean casserole made from scratch with a creamy sauce and crispy fried onions. A classic old-fashioned Thanksgiving side dish recipe. 
Cook Time: 25 minutes
Servings: 6

Ingredients  

  • 1 lb. Fresh Green Beans (ends snapped off)
  • 8 Tablespoons Salted Butter (divided)
  • 1 Large Onion (chopped)
  • 8 ounces Sliced Mushrooms
  • 3 cloves Garlic (minced)
  • 2 1/2 cups Half n Half
  • 1 teaspoon Salt
  • 1 teaspoon Pepper
  • 2 Tablespoons Flour or Cornstarch
  • 2 cups Fried Onions (such as French's)
  • 1/2 cup Parmesan Cheese, grated (optional)

Instructions 

  • In a large skillet, heat 4 Tablespoons of butter over medium-high heat. Add onions and cook until tender and caramelized, about 7-8 minutes, stirring often. Add mushrooms and cook for 4 minutes longer. Stir in garlic and cook for 1 minute. Transfer the mixture to a bowl. 
  • After the onion-mushroom mixture has been removed, use the same skillet. Heat skillet to a medium heat and add remaining 4 Tablespoons of butter. Add flour or cornstarch and begin to quickly whisk the mixture. Let cook, whisking often, for about 2 minutes.  Stir in half-n-half, salt, and pepper. Cook for 4-5 minutes until mixture thickens. Taste and check for seasonings. 
  • Preheat oven to 350 degrees. Bring a large pot of water to a boil. Add green beans and cook for 6-7 minutes.  Drain and transfer to ice bath to cool (optional).
  • Add onion-mushroom mixture to cream sauce and stir. Add green beans and stir to coat. Sprinkle with parmesan cheese, if using. Pour into a 9 x 9 baking dish. Bake for 25 minutes or until bubbly.  Remove from the oven and cover with fried onions. Bake for 5 minutes longer. Serve immediately, if possible. 

Notes

  • May use fresh, frozen or canned green beans. If using canned green beans, they don't need to be cooked ahead of time. 
  • Don't use anything less than half-n-half in these green beans as it creates a thick sauce. 
  • If you want bite-size green beans, cut the fresh green beans in half. 

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Course: Side Dish
Cuisine: American
Servings: 6
Keyword: green bean casserole
Like this? Leave a comment below!Jump to Comments

I hope you love this homemade creamy green bean casserole with fried onions!


Hi, I'm Melissa Stadler!

I am an Award-Winning Recipe Creator. Cover of Food Network Magazine. Two-Time Pillsbury Bake-Off Finalist. I am passionate about sharing the best recipes so you have success in the kitchen!

You Might Also Like

Leave a comment

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

Recipe Rating




81 Comments

  1. 5 stars
    This is absolutely delicious!

    I made it with portobello mushrooms and a purple onion. I omitted the fried onions and add a little parsley. It was so good that I went back for seconds and thirds.
    This was my first time making this dish “homemade”. Going forward, this is the only way that I plan to make it. I never thought you could replace Cambell soul’s cream of mushroom, but you’ve proven me wrong, thankfully.

  2. 5 stars
    Made it it was delicious and everything was perfect. My family absolutely loved it .Will be making it again .

  3. Hi! Can I make this the day before?
    Can I make it an insta pot?
    I don’t have an oven right now so I use my toaster oven 🙁 I have to cook in smaller batches for large amounts. Im having 15 guests for Christmas and would like to make your green bean casserole and your mashed potatoes too.
    Any suggestions to make it easier?

    Thank you,
    Marcy

    1. Hi Marcy! You are an angel having 15 over for Christmas. How fun! Let me see how I can help. I haven’t tried making it in an insta pot but you could add everything and cook it on the soup setting and then sprinkle with the fried onions. You can make everything the day before and just reheat it. I would suggest making the sauce the day before, cooking the green beans, and then heating it in the insta pot the day you want to serve it. I hope that helps. Merry Christmas!

  4. 5 stars
    This recipe can’t even compare to the green bean casserole that has been around forever. This one is a game changer. Even my kids who supposedly don’t like green beans, ate this and loved it. All natural. No canned soup. Thank you Modern Honey!

  5. 5 stars
    Thank you for an awesome green bean casserole recipe that did not include canned cream of mushrooms. Last year I found an awesome recipe on a professional chef’s website (I cant remember the name now) and the idea if going back to the canned version made me sad. This recipe checked all the boxes and was a hit for Thanksgiving. I didn’t boil my greens beans however, and I wish I had because they still had a little bit of a crunch. Many people liked the freshness of that but I think it would have been better not skipping that step. Overall great flavor, thank you!