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Campbells Green Bean Casserole Recipe

4.6 from 112 reviews

This classic Campbells Green Bean Casserole combines tender green beans with a creamy mushroom sauce, enhanced by a touch of soy sauce for depth, and topped with crispy fried onions for the perfect crunchy finish. Ideal as a comforting side dish for holiday dinners or weeknight meals.

Ingredients

Scale

Green Beans

  • 4 cups cut green beans (from 2 cans, 1 lb fresh, or one 16 oz frozen package)

Sauce Mixture

  • 1 can condensed cream of mushroom soup (10.5 oz)
  • 1/2 cup milk
  • 1 tsp soy sauce
  • 1/4 tsp ground black pepper

Topping

  • 1 1/3 cups crispy french fried onions, divided

Instructions

  1. Prepare the Green Beans: If using frozen green beans, thaw completely and drain any excess liquid. For fresh beans, trim and cut into 2-inch pieces, then blanch briefly in salted boiling water before draining. If using canned beans, drain well.
  2. Preheat the Oven or Air Fryer: Preheat your oven to 350°F or prepare an air fryer to the same temperature. Measure out the fried onions and split into two portions: about 2/3 cup for mixing into the casserole and 1/3 cup reserved for topping.
  3. Mix the Sauce: In a large bowl, whisk together the condensed cream of mushroom soup, milk, and soy sauce until smooth. The soy sauce adds a subtle umami flavor enhancing the mushroom base without adding saltiness.
  4. Combine Ingredients: Add the drained green beans, 2/3 cup of fried onions, and ground black pepper to the sauce mixture. Gently fold everything together, being careful not to crush the fried onions to keep them crispy.
  5. Bake the Casserole: Pour the mixture into a 9×9-inch baking dish and spread evenly. Bake in the preheated oven for 25 minutes or in the air fryer for 10 minutes until bubbling and heated through.
  6. Add the Topping: Remove the casserole, gently stir to redistribute the sauce, then sprinkle the reserved 1/3 cup of fried onions evenly on top.
  7. Final Bake: Return the casserole to the oven and bake for an additional 5 minutes (or 2 minutes in the air fryer) until the top is golden and crispy, and the casserole is bubbling.

Notes

  • Blanch fresh green beans to preserve color and texture before baking.
  • Dividing the fried onions ensures some stay crispy inside and some provide a crunchy topping.
  • You can use canned, frozen, or fresh green beans depending on convenience and preference.
  • Adding soy sauce to the mushroom soup provides a deeper umami flavor without making the dish salty.
  • This casserole is perfect for holidays like Thanksgiving or as a comforting side any time of year.

Keywords: green bean casserole, classic green bean casserole, mushroom soup casserole, holiday side dish, crispy fried onions, easy green bean recipe