Classic Green Bean Casserole Recipe

by Aimee Stock

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Last Updated on November 9, 2021 by Aimee Stock

This Classic Green Bean Casserole Recipe is the side dish everyone craves during the holidays. It’s simple to make but with a few tips, you can take this recipe from good to great! Let me show you how to make it.

Classic Green Bean Casserole Recipe

How to make this Classic Green Bean Casserole Recipe

The first (and most important) tip I have for you is to use FRESH green beans, not canned. Canned just do not hold up in this recipe. I cannot stress this one enough.

Fresh Green Beans

Wash and trim the ends off of the green beans, then cut into bite sized pieces. Because we are using fresh green beans and they are a bit firm, I like to par cook these by blanching or steaming and then cool completely. They will finish cooking in the oven.

Cut Green Beans

I also use mushrooms in this recipe. I’ve tried it with fresh mushrooms and I actually prefer canned. Just drain them and toss them into the undiluted Campbell’s Cream of Mushroom soup.

Adding mushrooms and Cream of Mushroom Soup

Add soy sauce.

Adding Soy Sauce

And milk.

Adding Milk

Season well with salt and pepper.

Seasoning the mushroom mix

Add the cut green beans and give a good stir.

Mix in the cut green beans

Spread the mixture into a baking dish.

Place in a casserole dish

To keep things traditional, I’m using crispy fried onions. These are very readily available in grocery stores nowadays. I put them on literally everything! Yummmy 🙂

Crispy Fried Onions

I like to mix some in and place some on top. Bake until the soup is bubbling and the top is golden.

Adding Fried Onions

Allow the casserole to cool slight before serving. It will thicken a bit as it rests.

Did you make my Classic Green Bean Casserole Recipe? Leave me a comment below and let me know what you thought. You can also tag me with your creations @aimee_stock on Instagram. I always love seeing what you come up with 🙂

Classic Green Bean Casserole Recipe PIN

Classic Green Bean Casserole Recipe

Classic Green Bean Casserole Recipe
Prep Time10 mins
Cook Time30 mins
Total Time40 mins
Course: Side Dish
Cuisine: American
Keyword: casserole
Servings: 6 servings


  • 8" Baking Dish


  • 1 Can Cream of Mushroom Soup
  • 7 oz Canned Mushrooms drained measurement is 4 oz
  • 1/2 c Milk
  • 1 tsp Soy Sauce
  • 1/8 tsp Salt
  • pinch Black Pepper
  • 1 1/2 lbs Green Beans par-cooked (blanched or steamed), SEE OPTIONS IN NOTES
  • 1 1/2 c Crispy Fried Onions or to taste


  • Prep the green beans.
    If using fresh, wash, trim and cut into pieces. Par-cook by blanching or steaming. Cool completely.
    If using frozen green beans, thaw and par-cook by blanching or steaming. Cool completely.
    If using canned green beans, no pre-cooking required. Just drain and use as is.
    Fresh Green Beans
  • Stir the soup, milk, soy sauce, black pepper and beans.
    Adding mushrooms and Cream of Mushroom Soup
  • Stir in some of the crispy onions, top with the rest.
    Adding Milk
  • Bake at 350°F. for 25 minutes or until the bean mixture is hot and bubbling. 
    Adding Milk


FRESH GREEN BEANS: 1 1/2 pounds, trimmed and cut into pieces, blanched or steamed
FROZEN GREEN BEANS: about 16-20 ounces, thawed and blanched or steamed
CANNED GREEN BEANS: 2 cans, drained no pre-cooking required


Serving: 1serving

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