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Green Bean Casserole with Frozen Green Beans

Green Bean Casserole with Frozen Green Beans bakes up lush and savory, with tender beans coated in mushroom-sour cream sauce and a buttery hint of Swiss cheese. A crown of crisp fried onions adds irresistible crunch and oniony depth. It’s an ideal holiday side or comforting weeknight addition alongside roast meats or poultry.

  • Prep10 mins
  • Cook45 mins
  • Serves8
  • DifficultyEasy
Green Bean Casserole with Frozen Green Beans
  1. 1

    Preheat the oven to 350 degrees F (175 degrees C).

  2. 2

    Combine the green beans, condensed soup, 1/2 cup milk, sour cream, Swiss cheese, 1/2 of the French-fried onions, garlic salt, soy sauce, and pepper in a large casserole dish and mix well.

  3. 3

    Cover and bake in the preheated oven for 30 minutes.

  4. 4

    If desired, add more milk halfway through for a creamier consistency.

  5. 5

    Top with the remaining onions and bake, uncovered, until bubbly, about 15 minutes more.