Description
This classic Green Bean Casserole recipe features tender green beans smothered in a creamy homemade mushroom sauce, topped with shredded cheddar cheese and crispy fried onions. Perfectly baked to a golden bubbly finish, it’s a comforting side dish ideal for holiday dinners or any family meal.
Ingredients
Scale
Sauce
- 4 tablespoons butter
- 2 cups finely diced baby Bella mushrooms
- ½ cup all-purpose flour
- 2 cups chicken broth
- 2 cups whole milk
- 1 ¼ teaspoon garlic powder
- 1 ¼ teaspoon onion powder
- 1 teaspoon salt
- ½ teaspoon black pepper
- ½ teaspoon dried parsley flakes
Casserole
- 24 ounces frozen green beans
- ¾ cup shredded cheddar cheese
- ½ cup milk
- 1 ½ cups crispy fried onions, divided
Instructions
- Cook Mushrooms: Melt the butter in a small saucepan over medium heat. Add the diced baby Bella mushrooms and cook for 5-6 minutes, stirring occasionally, until most of the mushroom liquid has evaporated.
- Add Flour: Sprinkle the all-purpose flour over the cooked mushrooms and stir well to combine, forming a roux base for the sauce.
- Incorporate Chicken Broth: Gradually whisk in the chicken broth until the mixture is smooth, ensuring no lumps remain.
- Make Sauce: Whisk in the whole milk, garlic powder, onion powder, salt, black pepper, and dried parsley flakes. Bring the mixture to a gentle boil while whisking constantly to avoid burning.
- Simmer Sauce: Reduce the heat and simmer for 4-6 minutes, stirring consistently until the sauce thickens. Remove from heat and allow to cool for 5-10 minutes.
- Preheat Oven: Set your oven to 350°F (175°C) to prepare for baking the casserole.
- Combine Ingredients: In a large mixing bowl, combine the homemade creamy mushroom sauce with frozen green beans, shredded cheddar cheese, ½ cup milk, and half (¾ cup) of the crispy fried onions.
- Prepare Baking Dish: Grease a 9×13 inch baking dish, then pour and evenly spread the green bean mixture inside.
- Bake: Place the baking dish in the preheated oven and bake for 25 minutes or until the casserole is bubbly and heated through.
Notes
- Using homemade mushroom sauce instead of canned cream of mushroom soup enhances flavor and reduces preservatives.
- Frozen green beans can be substituted with fresh blanched green beans if preferred.
- For extra crunch, add some crispy fried onions on top during the last 5 minutes of baking.
- Leftovers store well in the refrigerator for up to 3 days.
