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Irresistible Campbell’s Green Bean Casserole Recipe

4.7 from 87 reviews

A classic and creamy Campbell’s Green Bean Casserole featuring fresh or prepared green beans baked in a rich mushroom soup base, topped with crispy fried onions for a crunchy finish. This comforting side dish is perfect for holidays or any family meal, delivering traditional flavors with an easy-to-follow recipe.

Ingredients

Scale

For the Casserole:

  • 1/2 cup milk (whole milk works best for creaminess)
  • 1/4 tsp ground black pepper
  • 1 tsp soy sauce
  • 1 can condensed cream of mushroom soup (Campbell’s recommended)
  • 4 cups green beans (fresh, frozen, or canned; thawed if frozen)

For the Topping:

  • 1 1/3 cups crispy fried onions (French’s brand recommended, divided)

Instructions

  1. Prepare Your Ingredients and Preheat Equipment: If using frozen green beans, thaw completely and drain excess liquid. For fresh green beans, trim and cut into 2-inch pieces, then blanch briefly in salted boiling water and drain. If canned, simply drain well. Preheat oven to 350°F (or air fryer to the same temperature). Divide fried onions into 2/3 cup for mixing and 2/3 cup for topping, keeping the topping portion reserved in a small bowl.
  2. Build the Creamy Soup Base: In a large mixing bowl, whisk together condensed cream of mushroom soup, milk, and soy sauce until smooth. The soy sauce enhances umami flavor without overpowering saltiness, so whisk it well for even distribution.
  3. Combine Green Beans with Sauce and Seasonings: Add drained green beans, 2/3 cup fried onions, and black pepper to the soup mixture. Gently fold to evenly coat green beans with sauce and distribute onions, being careful not to overmix to retain onion crispness.
  4. Transfer to Baking Dish and Initial Bake: Pour mixture into a 9×9-inch baking dish, spreading evenly. Bake in the preheated 350°F oven for 25 minutes (or 10 minutes in air fryer) until bubbling and heated through.
  5. Stir and Top with Crispy Onion Garnish: Remove casserole from heat, gently stir the mixture, then evenly spread the reserved 1/3 cup fried onions over the top. Return to oven and bake for an additional 5 minutes (or 2 minutes in air fryer) until golden and bubbly, achieving a creamy interior with a crispy topping.

Notes

  • If using fresh green beans, blanching before baking helps maintain bright color and tender-crisp texture.
  • You can use fresh, frozen, or canned green beans interchangeably—just ensure proper draining or thawing to avoid excess moisture.
  • Whole milk is recommended for creaminess, but you can substitute with 2% milk if preferred.
  • The soy sauce adds umami depth without making the dish salty; adjust quantity to taste if desired.
  • Reserve a portion of fried onions for topping to ensure they stay crispy and fresh when baked on top.
  • Cooking times differ for oven versus air fryer; adjust accordingly.

Keywords: green bean casserole, Campbell’s, mushroom soup, crispy fried onions, classic holiday side dish, creamy green beans, baked casserole