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5 from 9 votes
Easy Green Bean Casserole Recipe | Favorite Thanksgiving Side Dishes

Green Bean Casserole Recipe

7 7 7
WW Freestyle: 5
Prep Time15 mins
Cook Time50 mins
Total Time1 hr 5 mins
This easy Green Bean Casserole recipe is flavorful and so delicious! Prepared with a rich mushroom gravy and made completely from scratch, this is the perfect no-fuss Thanksgiving side dish idea.
Course: Side Dish
Cuisine: American
Servings: 6 servings
Calories: 171



  • 2 tablespoons butter
  • 1 yellow onion, diced
  • 4 garlic cloves, minced
  • 8 ounces cremini mushrooms, sliced
  • salt and fresh ground pepper, to taste
  • 2 sprigs fresh thyme, leaves only
  • 2 tablespoons all-purpose flour
  • 2 cups low sodium vegetable broth, (you can also use chicken broth)
  • 1/2 cup half and half or cream
  • 1/2 cup grated Parmesan
  • 1/4 teaspoon ground nutmeg
  • 1 1/2 pounds frozen green beans, thawed and drained


  • Preheat oven to 375F.
  • Melt butter in a large skillet or dutch oven over medium heat.
  • Add onions and cook for 4 minutes, or until softened.
  • Stir in garlic and continue to cook for 1 minute.
  • Add mushrooms and season with salt and pepper; stir in thyme leaves and sauté for 8 minutes, or until liquid has evaporated.
  • Sprinkle with flour; cook and stir for 1 minute.
  • In a mixing bowl, whisk together broth, half and half, parmesan, and nutmeg.
  • Add the half and half mixture to the skillet; bring to a boil, then reduce heat to medium low and simmer for 5 minutes, or until thickened.
  • Add green beans to the mushroom sauce and cook for 8 to 10 minutes, or until green beans are tender.
  • Transfer everything to a 4-quart baking dish and bake for 20 to 25 minutes, or until bubbly.
  • Add fried onions on top and continue to bake for 5 more minutes, or until browned on top.
  • Remove from oven and let stand 5 minutes.
  • Serve.


  • Assemble the casserole without the onion topping; let completely cool. Wrap with plastic wrap and aluminum foil and refrigerate for up to 3 days.
  • When ready to serve, remove from the refrigerator while the oven preheats. Bake as directed.
  • Assemble the casserole without the onion topping; let completely cool. Wrap with plastic wrap and aluminum foil and freeze for 2 weeks to 1 month.
  • Take out of the freezer the night before and thaw out in the fridge.
  • The next day, bring the casserole to room temperature and continue as directed.
Reduce your WW Freestyle points down to 3 points by leaving out the French's fried onions.
Nutrition Facts
Green Bean Casserole Recipe
Amount Per Serving
Calories 171 Calories from Fat 54
% Daily Value*
Fat 6g9%
Saturated Fat 5g25%
Cholesterol 17mg6%
Sodium 425mg18%
Potassium 480mg14%
Carbohydrates 18g6%
Fiber 3g12%
Sugar 5g6%
Protein 4g8%
Vitamin A 1155IU23%
Vitamin C 16.3mg20%
Calcium 77mg8%
Iron 1.5mg8%
* Percent Daily Values are based on a 2000 calorie diet.
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