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Easy Green Bean Casserole

This classic holiday side dish is loaded with flavor and texture. You really couldn't ask for more in this Easy Green Bean Casserole with crunchy green beans and savory baby bella mushrooms blanketed in cream of mushroom soup topped with crunchy fried onions.
Prep Time10 minutes
Cook Time30 minutes
Total Time40 minutes
Course: Dinner, Side Dish, Thanksgiving Sides
Cuisine: American
Keyword: Easy Green Bean Casserole, Gluten-Free Green Bean Casserole
Servings: 6 people
Author: Silvia Dunnirvine


  • 1 1/2 lb fresh green beans trimmed
  • 2 cups baby Bella mushrooms sliced
  • 2 tbsp butter
  • 1 can 14.5oz cream of mushroom soup gluten-free
  • 3.5 oz fried onions gluten-free
  • 1/2 cup grated parmesan cheese
  • 1/2 onion sliced
  • 3 cloves garlic minced
  • salt and pepper to taste
  • fresh thyme


  • Trim and rinse green beans and cook in steam basket for 8 minutes or until tender. Remove from heat and rinse in cold water. Set aside
    green beans
  • Meanwhile melt butter in large skillet and sauté mushroom and onions, along with fresh thyme. Sauté for about 4-5 minutes until softened. Add garlic and season with salt and pepper. Sauté for 2 more minutes.
    Green Bean Casserole
  • Stir in can of cream of mushroom soup and whisk to combine.
  • Transfer the green beans to the skillet, add parmesan cheese and season with salt and pepper. Mix well to coat green beans evenly.
    Green Bean Casserole
  • Transfer green bean and mushroom cream mixture to a baking dish. Add fresh thyme.
    green bean casserole recipe
  • Top green bean mixture with crispy fried onions.
    Green Bean Casserole
  • Bake at 350F degrees for 20 minutes. Serve hot.
    classic green bean casserole for thanksgiving


Calories: 219kcal | Carbohydrates: 21g | Protein: 8g | Fat: 12g | Saturated Fat: 6g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 1g | Cholesterol: 10mg | Sodium: 658mg | Potassium: 452mg | Fiber: 3g | Sugar: 5g | Vitamin A: 863IU | Vitamin C: 15mg | Calcium: 133mg | Iron: 2mg