This website may contain affiliate links and advertising so that we can provide recipes to you. Read my disclosure policy.
Green bean casserole uses fresh mushrooms salted with onions and garlic, topped with crispy onions, and loaded with fresh, crunchy green beans! This might be your favorite dish next Thanksgiving!
Reasons You’ll Love This Recipe
- Easy to Make: This recipe only takes about 30 minutes from start to finish!
- Super Flavorful: My secret to making these so incredible is the garlic, mushrooms, fresh tender green beans, and, of course, the crispy onions on top!
- Versatile: This casserole is the perfect side at any Thanksgiving feast. It goes perfectly with mashed potatoes, turkey, and stuffing!
A Reader’s Review
The absolute BEST green bean casserole recipe I’ve ever tried! It was a hit with my entire family! Even the picky non-green bean casserole eaters loved it! That’s saying something!
Ingredients for Green Bean Casserole
This recipe has some fresh ingredients that take this casserole to the next level! See the recipe card below for a list of exact ingredient measurements.
- Butter: I used unsalted butter so that I didn’t add any extra salt in the recipe!
- Garlic cloves: If you don’t have any fresh garlic cloves on hand, then you can use the minced garlic in your fridge! 1/2 tsp equals about one clove of garlic.
- Onion: Make sure that this is finely diced.
- Button mushrooms: These are optional! If you dislike mushrooms, you can just take these out.
- Fresh green beans: Cut off the ends and then cut each green bean in half.
- Chicken broth: I use chicken broth because it gives a slightly added flavor.
- Cream of mushroom soup: I try using a can of low-sodium cream for this recipe.
- Parmesan cheese: You can finely grate this to add to the recipe!
- Salt: This is used to enhance all of the delicious flavors!
- Black pepper: This won’t give any heat but the perfect amount of flavor.
- Crispy onion strings: These give that perfect added crunch.
Let’s Make a Casserole!
This green bean casserole recipe only takes about 25 minutes and tastes amazing! Everyone at our house loves this Thanksgiving side dish, and I know that you will, too!
- Preheat oven and cook vegetables: Preheat oven to 350 degrees. Melt butter in a large skillet over medium heat. Then, add onions and mushrooms and cook, stirring occasionally, until just tender. Add garlic and cook another 1-2 minutes, then remove from heat and set aside.
- Cook green beans: Place green beans and chicken broth in a medium saucepan and bring to a boil. Cook for about 8 minutes until beans are crisp and tender, and then drain.
- Bake green beans and vegetables together: Spray a 2-quart baking dish with cooking spray. Place the soup, mushroom mixture, green beans, parmesan, salt, and pepper in a large bowl and stir to combine. Then, transfer the mixture to the prepared baking dish and top with french-fried onions. Bake at 350 degrees for 20 minutes, until green bean casserole is heated through.
Green Bean Casserole Frequently Asked Questions
- Can you use canned green beans instead? I would stick to fresh green beans with this recipe! Canned green beans tend to be mushy and tasteless once baked into the casserole, but using fresh beans cooked in chicken broth makes them perfectly crisp-tender and full of flavor! I just grab a few big handfuls of beans, chop off the ends, and cut them in half. You want them in about 1 ½ inch pieces. You will notice the flavor is so much better with fresh green beans!
- Cream of mushroom soup: Even though I use all kinds of fresh and homemade ingredients in this dish, I still stick with the classic cream of mushroom soup to bind all the ingredients together. Yes, I could make a sauce from scratch (and you totally can!), but I love using the canned soup as a shortcut. And quite frankly, I’ll take all the help and shortcuts I can get during the holidays!
- Homemade or store-bought onion strings: I like to use store-bought onion strings for this because, once again, it makes this so much easier! But if you have time and want to take it to the next level, you can make some onion strings on your own!
Can You Make This Ahead of Time?
Yes! You can make this green bean casserole 24-48 hours before and keep it covered in the fridge. Be sure to add the fried onions right before baking.
Make a Thanksgiving Feast!
If you are making this for Thanksgiving and need more ideas for you meal then I have you covered! These are some of my very favorite classic Thanksgiving recipes! Tried and true, they will for sure keep your whole family happy on the holiday! They are SOO GOOD and everyone will love them!
Pin this now to find it later
Pin It
World’s Best Green Bean Casserole
Ingredients
- 2 tablespoons butter
- 2 cloves garlic minced
- 1/2 cup onion finely diced
- 8 ounce package button mushrooms sliced
- 3 cups fresh green beans ends removed and cut in half
- 3 cups low-sodium chicken broth
- 10.75 ounce can low-sodium cream of mushroom soup
- 1/4 cup grated Parmesan cheese
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- crispy onion strings
Instructions
- Preheat oven to 350 degrees. Melt butter in a large skillet over medium heat. Add onions and mushrooms and cook, stirring occasionally, until just tender. Add garlic and cook another 1-2 minutes, then remove from heat and set aside.
- Place green beans and chicken broth in a medium saucepan and bring to a boil. Cook about 8 minutes until beans are crisp-tender and drain.
- Spray a 2-quart baking dish with cooking spray. Place the soup, mushroom mixture, green beans, Parmesan, salt, and pepper in a large bowl and stir to combine. Transfer mixture to the prepared baking dish and top with crispy onion strings. Bake at 350 degrees for 20 minutes, until casserole is heated through.
Video
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
If you want to double the recipe are there any modifications or can you double everything?
Anna, no modifications needed! Except, you would need to use a 4-quart baking dish instead of a 2-quart baking dish.
I recreated a swap instead of french fried onions, too greasy for me. I used plain Won Ton Crispy tortilla strips found in the produce area for the topping And I added wedged cut onions and leek, worchester sauce to the sauce mixture.
Sounds amazing! Thanks for sharing!
Excellent! My husband and son loved it, we rated for fun all our thanksgiving dishes, and next to my Sage Cornbread stuffing was this dish. Definitely a winner!
Seems like the amount of green beans listed in the recipe is incorrect…3 cups of green beans is much too little, only coming about to about ~1/2 a pound. Seems like it would make a lot more sense to list the green beans by weight, so that people can feel confident about the amount they are using.
I’m adding goat cheese and bacon to kick it up a notch! Happy Thanksgiving all!
Omg this is the tastiest string bean casserole ever and It’s have tried a lot of them! Even before baking is already edible and delicious I have to stop myself from eating it before putting it in the oven!
OUTSTANDING! Great fresh ingredients
Will try the recipes soon. Thanks so much
Hi. Can I add bacon?
Yes! Bacon is a great addition to green bean casserole.
Can you add shredded rotisserie chicken?
Yes, that would be delicious!
Made this last year for thanksgiving and everyone begged me to make it this year ! It’s perfect ! I wouldn’t change a thing ! This year I made it ahead and cooked it at the event we we’re attending and it turned out just great . Probably a little tastier because it sat for a little . Soooo yummy !!! Going to most likely make it again at Christmas !!
Can I make this and freeze ?
If yes, would I freeze before baking?
This was FANTASTIC! It was a huge hit at Thanksgiving this past year. There weren’t even any leftovers. I will absolutely make this again. Probably before next fall!
How many lbs of green beans should I purchase? Looking forward to making this for Christmas.
This recipe uses 3 cups of green beans. So about 1-1.5 lbs!
Will try the recipes soon. Thanks so much
Would shocking the green beans after cooking help or hurt when preparing a day ahead? Thank you for sharing, I will be making this today.
Can I use frozen green beans instead of fresh?
I’m wondering about that as well? I don’t see an answer though?
I recommend fresh!
Can you make this a day ahead??
Hi Justina, thank you for your question! Yes you can! Assemble the casserole, but hold off on adding the topping until you’re ready to bake it. Cover the assembled casserole with saran wrap, and place it in the fridge overnight. When you are ready to bake it, remove it from the fridge and then top it with the crispy onions. Let me know how it turns out!
Can you share what kind of onion straws you used here? They look delicious compared to my usual brand! Trying this recipe for Thanksgiving this week. Thanks!
Hi! I used my homemade onion strings! Here is the recipe! Crispy Onion Strings