Ultimate Creamy Green Bean Casserole (with a Crispy Onion Topping)
Indulge in this delicious, creamy Green Bean Casserole that’s topped with crunchy fried onions. Perfect for holidays or any night you crave a comforting side dish, this recipe uses frozen green beans for convenience and a rich mushroom sauce for maximum flavor.
Print Share on Twitter Share on FacebookServings: 8 Servings
Calories: 180kcal
Equipment
- Large mixing bowl
- Medium Skillet (optional if you want to sauté mushrooms)
- Measuring cups and spoons
- Rubber Spatula or Wooden Spoon
- 9x13-inch Casserole Dish
- Oven (preheated to 350°F)
Ingredients
- 1 ½ pounds frozen green beans thawed and patted dry
- 1 can 10.5 oz cream of mushroom soup (or homemade if preferred)
- ½ cup milk any type works
- 1 tablespoon soy sauce adds a subtle savory note
- 1 cup sliced mushrooms optional, for extra texture
- Salt and pepper to taste
- 1 ½ cups crispy fried onions divided; half for mixing, half for topping
- Optional ¼ cup grated cheddar or parmesan (for a cheesy twist)
Instructions
- Preheat Your Oven
- Set the oven to 350°F (175°C).
- Prepare the Sauce
- In a large mixing bowl, combine the cream of mushroom soup, milk, soy sauce, and a pinch of salt and pepper.
- If you’re adding fresh mushrooms, you can sauté them briefly in a medium skillet with a little oil or butter, then stir them into the sauce.
- Mix in the Green Beans
- Add the thawed frozen green beans to the sauce.
- Stir in ½ cup of the crispy fried onions (this helps distribute flavor throughout).
- Make sure the beans are coated evenly.
- Assemble the Casserole
- Lightly grease a 9x13-inch casserole dish.
- Pour the green bean mixture into the dish, spreading it out evenly.
- Bake
- Place the casserole in the preheated oven.
- Bake for about 25 minutes, or until it’s bubbling around the edges.
- Add the Crispy Topping
- Carefully remove the casserole from the oven.
- Sprinkle the remaining fried onions on top. If you want a cheesy touch, add ¼ cup grated cheddar or parmesan before the fried onions.
- Return the dish to the oven for an additional 5 minutes, just until the topping is golden and crunchy.
- Serve and Enjoy
- Let the casserole cool for a minute or two, then bring it to the table.
- Serve warm and watch your guests dive in!
Video
Notes
Tips & Tricks
- Extra Creaminess: Swap the milk for half-and-half or heavy cream if you want a richer sauce.
- Fresher Flavor: Use fresh green beans by blanching them for 3–4 minutes in boiling water, then proceed with the recipe.
- Make Ahead: Assemble everything except the fried onion topping. Cover and refrigerate. Add the topping right before baking.
- Sautéed Onions or Garlic: For more savory depth, sauté diced onions or garlic, then fold them into the mixture.
- Cheesy Variation: Mix in a handful of shredded mozzarella or cheddar for a velvety twist.
Nutrition
Serving: 1serving | Calories: 180kcal | Carbohydrates: 13g | Protein: 5g | Fat: 12g | Saturated Fat: 3g | Sodium: 450mg | Fiber: 3g | Sugar: 3g
Nutrition Disclaimer
The Chef Marcy is not a dietician or nutritionist, and any nutritional information shared is an estimate. If calorie count and other nutritional values are important to you, we recommend running the ingredients through whichever online nutritional calculator you prefer. Calories can vary quite a bit depending on which brands were used.