Are you looking for a classic, easy-to-make side dish that’s perfect for any occasion? Learning how to make green bean casserole is a great place to start. This traditional recipe is a staple at many family gatherings and holiday meals. You’ll love this green bean casserole recipe because it’s simple, delicious, and can be customized to suit your taste preferences. Whether you’re a beginner cook or an experienced chef, this dish is sure to become a favorite.
Table of Contents
Why You’ll Love This Recipe
- It’s easy to make and requires minimal ingredients
- You can customize it with your favorite seasonings and toppings
- It’s a great side dish for holidays, family gatherings, and potlucks
- You can make it ahead of time and refrigerate or freeze it for later
Key Ingredients & Substitutions

To make a green bean casserole, you’ll need the following ingredients:
- 4 cups frozen cut green beans: Frozen green beans are a convenient and affordable option for this recipe. They’re already cut and ready to use, saving you time on preparation. Look for a brand that is low in sodium and has no added preservatives.
- 1 (10.5 ounce) can condensed cream of mushroom soup: This soup is a key component of the traditional green bean casserole recipe. It adds a rich, creamy flavor and helps to bind the ingredients together. Make sure to choose a low-sodium option to control the salt content of your dish.
- ½ cup milk: Milk adds moisture and tenderness to the casserole. You can use any type of milk you prefer, such as whole, skim, or a non-dairy alternative.
- 1 teaspoon soy sauce: Soy sauce enhances the umami flavor of the dish and adds depth to the sauce. Use a low-sodium soy sauce to avoid adding too much salt to your casserole.
- ½ teaspoon black pepper: Black pepper adds a touch of spice and flavor to the dish. Use freshly ground pepper for the best flavor.
- ¼ teaspoon seasoned salt: Seasoned salt adds a blend of spices and herbs to the dish, enhancing the overall flavor. Look for a brand that is low in sodium and doesn’t contain any MSG.
- 1½ cups crispy fried onions: Crispy fried onions are a classic topping for green bean casserole. They add a crunchy texture and a sweet, savory flavor. You can make your own crispy fried onions or use store-bought.
If you want to try a different twist on the traditional recipe, you could consider adding some diced Breakfast Casserole With Hash Browns to the mixture for added flavor and texture. Alternatively, you could use fresh green beans instead of frozen, as we’ll discuss in the FAQs section.
Step-by-Step Instructions

1. Preheat your oven to 350°F. Make sure to preheat your oven at least 15-20 minutes before baking to ensure it reaches the correct temperature.
2. Cook the green beans according to their type (boil frozen, simmer fresh, drain and use canned). If using frozen green beans, boil them in water for 5-7 minutes or until tender. If using fresh green beans, simmer them in water for 5-7 minutes or until tender. If using canned green beans, drain and rinse them with water.
3. Mix the cooked green beans with cream of mushroom soup, milk, soy sauce, pepper, salt, and part of the crispy onions. In a large mixing bowl, combine the cooked green beans, cream of mushroom soup, milk, soy sauce, pepper, and salt. Stir until the ingredients are well combined. Add half of the crispy onions to the mixture and stir to combine.
4. Transfer the mixture to a baking dish. Use a 9×13 inch baking dish to ensure the casserole cooks evenly.
5. Bake uncovered for about 30-35 minutes or until bubbly. The casserole is done when it’s hot, bubbly, and the onions are golden brown.
6. Top with remaining crispy onions and bake for an additional 10 minutes or until golden. Sprinkle the remaining crispy onions on top of the casserole and bake for an additional 10 minutes. This will help the onions to brown and crisp up.
For more make-ahead inspiration, explore these Make Ahead Breakfast Casserole ideas. You can also try adding some Dense Bean Salad to the mixture for added flavor and nutrition.
When handling leftovers, be sure to follow food safety guidelines for leftovers to ensure that your dish remains safe to eat. Additionally, always follow official guidance on safe minimum internal temperatures to ensure that your casserole is cooked to a safe temperature.
Expert Chef Tips & Troubleshooting
To achieve crispy fried onions on top of the casserole, sprinkle them evenly over the dish during the last 10 minutes of baking. You can also try broiling the casserole for an additional 1-2 minutes to enhance the crispiness of the onions. Keep a close eye on the casserole to prevent the onions from burning.
If you find that your casserole is too dry, you can add a little more milk or cream to the mixture. If it’s too wet, you can add a little more cream of mushroom soup or crispy onions.
To prevent the casserole from becoming soggy, make sure to not overmix the ingredients. Also, don’t overbake the casserole, as this can cause the onions to become too brown and the casserole to dry out.
Storage, Make-Ahead & Reheating

Leftovers of the green bean casserole can be stored in the refrigerator for up to 3 days. To freeze, prepare the casserole up to the point of baking, then cover it tightly with aluminum foil or plastic wrap and place it in the freezer for up to 3 months. When you’re ready to bake, thaw the casserole overnight in the refrigerator and bake as instructed.
To reheat the casserole, bake it in the oven at 350°F for 20-25 minutes or until hot and bubbly. You can also reheat it in the microwave, but be careful not to overheat, as this can cause the casserole to become dry and tough.
Recipe Variations and Flavor Adaptations
There are many ways to customize the green bean casserole recipe to suit your taste preferences. Here are a few ideas:
- Add some diced bell peppers or mushrooms to the mixture for added flavor and texture.
- Use different types of milk, such as almond or soy milk, to create a non-dairy version of the recipe.
- Add some grated cheese, such as cheddar or parmesan, to the mixture for an extra burst of flavor.
- Use different types of soup, such as cream of chicken or cream of broccoli, to create a unique flavor profile.
- Add some diced ham or bacon to the mixture for a smoky, savory flavor.

Green Bean Casserole
Equipment
- 9×13-inch baking dish
- Oven
Ingredients
Green Beans
- 4 cups frozen cut green beans
Sauce
- 1 (10.5 ounce) can condensed cream of mushroom soup
- ½ cup milk
- 1 teaspoon soy sauce
- ½ teaspoon black pepper
- ¼ teaspoon seasoned salt
- 1½ cups crispy fried onions
Instructions
- Preheat oven to 350°F.
- Cook green beans according to their type (boil frozen, simmer fresh, drain and use canned).
- Mix cooked green beans with cream of mushroom soup, milk, soy sauce, pepper, salt, and part of the crispy onions.
- Transfer the mixture to a baking dish.
- Bake uncovered for about 30-35 minutes or until bubbly.
- Top with remaining crispy onions and bake for an additional 10 minutes or until golden.
Notes
- Calories: 170
- Protein: 3g
- Carbohydrates: 17g
- Fat: 9g
- Sodium: 350mg
Frequently Asked Questions
Can I use fresh green beans instead of frozen, and how do I prepare them?
You can use fresh green beans as a substitute in the green bean casserole recipe. To prepare fresh green beans, trim the ends and cut them into 1-inch pieces. Then, simmer them in boiling water for about 5 minutes, or until they are tender but still crisp. Drain the green beans and proceed with the recipe as instructed.
How do I store leftovers of the green bean casserole, and can I freeze it?
Leftovers of the green bean casserole can be stored in the refrigerator for up to 3 days. To freeze, prepare the casserole up to the point of baking, then cover it tightly with aluminum foil or plastic wrap and place it in the freezer for up to 3 months.
Can I customize the green bean casserole recipe with additional ingredients, such as cheese or garlic?
Yes, you can customize the green bean casserole recipe to suit your taste preferences. Some popular additions include shredded cheddar cheese, minced garlic, and sautéed mushrooms. Simply mix these ingredients into the green bean and soup mixture before transferring it to the baking dish.
What is the best way to achieve crispy fried onions on top of the casserole?
To achieve crispy fried onions on top of the casserole, sprinkle them evenly over the dish during the last 10 minutes of baking. You can also try broiling the casserole for an additional 1-2 minutes to enhance the crispiness of the onions.
























