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Homemade Green Bean Casserole

Homemade Green Bean Casserole is a classic holiday recipe made from scratch with an easy creamy béchamel sauce, green beans and fried onions. An irresistible side dish everyone is going to love!
Course: Side Dish
Cuisine: American
Keyword: Homemade Green Bean Casserole
Prep Time: 20 minutes
Cook Time: 30 minutes
Servings: 6
Author: Heather



  • Preheat oven to 375°F.
  • In a large skillet, melt butter over medium heat.
  • Add diced mushrooms and sauté 3-4 minutes.
  • Sprinkle the flour, garlic powder, onion powder, salt and black pepper over the mushrooms and stir together, cook for 1-2 minutes.
  • Slowly stir in the milk while whisking.
  • Bring to a low boil, reduce heat to low and simmer until thickened and sauce coats the back of spoon, about 2-3 minutes. Remove from heat.
  • Stir in green beans and 1 cup of the fried onions.
  • Spread into an 8x8 or 2 quart baking dish.
  • Evenly sprinkle remaining cup of fried onions on top.
  • Bake casserole for 20-30 minutes until bubbling and golden brown.


Calories: 225kcal | Carbohydrates: 21g | Protein: 4g | Fat: 14g | Saturated Fat: 7g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 14mg | Sodium: 714mg | Potassium: 341mg | Fiber: 4g | Sugar: 4g | Vitamin A: 199IU | Vitamin C: 27mg | Calcium: 53mg | Iron: 7mg
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