Go Back
–+ servings
Green bean casserole topped with crispy onions.

Grandma's Easy Green Bean Casserole

Print Recipe
Grandma's Easy Green Bean Casserole might be the simplest dish on the dinner table, but it should not be overlooked! Tender green beans are combined with a luscious, creamy sauce and topped with crispy fried onions. It's a tried and true recipe that is full of delicious, savory flavors you’ll love. Perfect for Thanksgiving or paired with weeknight dinners!
Course Side Dish
Cuisine American
Diet Vegetarian
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 12 servings
Calories 558
Author Kim

Ingredients

  • 3 (10.5 oz) cans Campbell's® Cream of Mushroom Soup
  • 3 (15.5 oz) cans cut green beans drained
  • 1/2 cup milk
  • 2 (6 oz) containers French's Crispy Fried Onions divided

Instructions

  • Preheat oven to 350 degrees F. and spray a 9x13-inch baking pan or casserole dish with non-stick cooking spray. Set aside.
    Casserole dish sprayed with cooking spray.
  • In a large bowl, combine cream mushroom soup, drained green beans, milk and one container of crispy fried onions. Stir to mix well.
    Stirring the green bean mixture in a white bowl.
  • Pour green bean mixture into baking dish and top with the remaining can of crispy fried onions.
    Topping the green bean mixture with fried onions.
  • Bake at 350 degrees F. for about 30 to 35 mins and until sides are beginning to brown and casserole is bubbly.
    Baked green bean casserole.
  • Let casserole sit for about 10 mins before serving. Enjoy!
    Serving green bean casserole with a large silver serving spoon.

Notes

  • Fried onions. You don’t have to use all of the crispy fried onions. We really love them, so we use all of them, but use your preferred amount.
  • Half the recipe. This recipe can be halved and baked in a 2-quart (or 8-inch square) baking dish.
  • Make ahead. You can make this green bean casserole 24-48 hours in advance and keep covered in the fridge. Be sure to add the topping of fried onions right before baking.
  • Storing leftovers. Place any leftover casserole covered in the baking pan or in an airtight container in the fridge for up to four days.
  • To reheat. Rewarm an individual portion in the microwave for about 45 seconds to 1 minute, or feel reheat the entire baking dish in the oven for a few minutes.
  • Freezing. While this is best eaten fresh, you CAN freeze it. Assemble it (minus the topping), cover in a layer of plastic wrap and foil, then freeze for up to 3 months. Thaw in the refrigerator overnight, add the topping, and bake as directed, adding an extra 5 to 10 minutes to the bake time. We don't recommend freezing baked casserole, as the fried onions will become soggy when thawed.

Nutrition

Serving: 1serving | Calories: 558kcal | Carbohydrates: 44g | Protein: 6g | Fat: 39g | Saturated Fat: 17g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Cholesterol: 5mg | Sodium: 1168mg | Potassium: 341mg | Fiber: 3g | Sugar: 4g | Vitamin A: 774IU | Vitamin C: 13mg | Calcium: 56mg | Iron: 2mg