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Campbell's green bean casserole served on a white plate with a fork.

Campbells Green Bean Casserole (Classic Recipe)

  • Author: Sandra Flegg
  • Total Time: 40 minutes
  • Yield: 6 servings


Campbell’s Green Bean casserole with creamy mushroom soup is a classic holiday side hot bubbly dish often topped with crispy fried onions!

This 5 ingredient green bean casserole easy recipe can be made as a tender fresh green bean casserole recipe or with canned or frozen green beans.


1 can (10.5 ounces) Campbell’s Condensed Cream of Mushroom Soup

1/2 cup milk

1 teaspoon soy sauce

4 cups cooked cut green beans

1 and 1/3 cups French’s French Fried Onions (divided)


  1. Preheat oven to 350°F. 
  2. In a large bowl, combine the cream of mushroom soup, milk, soy sauce, cooked green beans and ⅔ cup French fried onions in a 9×13-inch baking dish. Season with salt & pepper. 
  3. Bake for 25 to 30 minutes or until heated through.  Stir the bean mixture and sprinkle with remaining ⅔ cup of onions. 
  4. Bake for another 5 to 8 minutes, until the onions are golden brown.


Storing green bean casserole with mushroom soup

How long can I keep green bean casserole in the fridge? Store the cooled casserole dish covered with plastic wrap in the fridge for up to 4 days. You can also scoop the leftover green beans into an airtight container to store in the fridge for 4 days.

Make sure you only keep the green bean casserole out at room temperature for no more than 2 hours for proper food safety.

Can I freeze green bean casserole?

Yes you can! Make the bean casserole and freeze the dish before baking without the fried onions on top.

Thaw in the fridge overnight add the fried onions to the top and bake adding 10 additional minutes of cooking time.

  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Category: Side Dishes
  • Method: Oven Baked
  • Cuisine: American

Keywords: Campbell's green bean casserole, green bean casserole with cream of mushroom soup