Casseroles, Dinner, Lunch

Classic Green Bean Casserole Recipe: A Timeless Side Dish

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A Green Bean Casserole is the ultimate comfort-food side dish, making its way to countless holiday tables year after year.

green bean casserole

With tender green beans, a creamy mushroom sauce, and a crispy fried onion topping, this timeless recipe is both nostalgic and delicious.

Whether it’s Thanksgiving, Christmas, or any family gathering, this casserole is a guaranteed crowd-pleaser.

What Is Green Bean Casserole?

Green Bean Casserole is a simple yet flavorful dish that features green beans mixed with a creamy mushroom-based sauce, topped with crispy fried onions, and baked to golden perfection.

Created in the mid-20th century, this recipe has become a beloved tradition for its comforting flavors and ease of preparation.

Perfect for potlucks and special occasions, it’s a dish that brings everyone to the table.

Ingredients You’ll Need for This Green Bean Casserole Recipe

This recipe serves 6–8.

Main Ingredients:

  • 1 ½ lbs fresh green beans (trimmed and cut into 2-inch pieces) or 1 ½ lbs frozen green beans
  • 1 can (10.5 oz) condensed cream of mushroom soup
  • ¾ cup milk
  • 1 teaspoon soy sauce
  • 1 teaspoon garlic powder
  • Salt and pepper (to taste)
  • 1 cup crispy fried onions (plus extra for topping)

Optional Additions:

  • ½ cup grated Parmesan cheese (for added richness)
  • ¼ teaspoon red pepper flakes (for a spicy kick)
  • ½ cup sliced mushrooms (sautéed for extra flavor)
  • 1 tablespoon butter (to sauté the mushrooms)
  • ¼ cup slivered almonds (for a nutty crunch)
green bean casserole

Substitutions and Variations

  • Vegetarian Option: Ensure the cream of mushroom soup is vegetarian-friendly.
  • Dairy-Free: Use a plant-based cream of mushroom soup and non-dairy milk.
  • Low-Carb: Skip the crispy onions and add sautéed onions or toasted almond flour for texture.
  • Cheesy Upgrade: Mix shredded cheddar or Monterey Jack cheese into the green bean mixture.
  • From Scratch: Replace the canned soup with a homemade roux-based mushroom sauce for a fresh twist.

Step-by-Step Instructions to Make This Green Bean Casserole Recipe

1. Preheat the Oven

  • Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.

2. Prepare the Green Beans

  • If using fresh green beans, boil them in salted water for 5–7 minutes until tender-crisp. Drain and transfer to an ice bath to stop the cooking process. For frozen green beans, thaw and drain them thoroughly.

3. Make the Sauce

  • In a large mixing bowl, combine the cream of mushroom soup, milk, soy sauce, garlic powder, salt, and pepper. Stir until smooth.

4. Assemble the Casserole

  • Add the green beans to the sauce mixture and toss until evenly coated. Pour the mixture into the prepared baking dish.
  • Sprinkle 1 cup of crispy fried onions over the top.

5. Bake

  • Bake the casserole uncovered for 25 minutes. Remove from the oven, sprinkle additional fried onions on top, and bake for another 5–10 minutes until the onions are golden and crispy.

6. Rest and Serve

  • Allow the casserole to rest for 5 minutes before serving. Serve warm and enjoy!
green bean casserole

Common Mistakes to Avoid

  • Overcooking Green Beans: Boil fresh green beans just until tender-crisp to retain their texture and color.
  • Watery Sauce: Drain frozen or fresh green beans thoroughly to prevent a watery casserole.
  • Burning the Onions: Add the extra fried onions toward the end of baking to avoid burning.
  • Under seasoning: Taste and adjust the seasoning before baking for a perfectly balanced dish.

Serving and Presentation Tips

  • Pair with Main Dishes: Serve alongside roasted turkey, glazed ham, or baked chicken for a complete meal.
  • Family-Style: Present the casserole in a decorative baking dish for a warm, inviting touch.
  • Individual Servings: Plate portions with a garnish of parsley or slivered almonds for added elegance.

Expert Tips

  • Make It Ahead: Assemble the casserole (excluding the fried onion topping) and refrigerate for up to 24 hours. Add the onions just before baking.
  • Reheat Leftovers: Warm in the oven at 350°F (175°C) until heated through. Avoid microwaving to keep the crispy topping intact.
  • Freeze for Later: Prepare and freeze the casserole without the onions. Thaw overnight, bake, and add the onions for the final few minutes of cooking.

Frequently Asked Questions

Can I use canned green beans?
Yes, canned green beans are a convenient option. Drain and rinse them thoroughly before using.

How do I make this casserole vegetarian?
Ensure the cream of mushroom soup is vegetarian-friendly, and you’re all set.

Can I add cheese to the recipe?
Absolutely! Mix shredded cheddar or Parmesan cheese into the green bean mixture or sprinkle on top.

What’s the best way to store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days.

green bean casserole

Conclusion

This Classic Green Bean Casserole Recipe is a timeless side dish that’s perfect for any occasion.

With tender green beans, a creamy mushroom sauce, and a crispy onion topping, it’s a comforting, flavorful addition to your holiday spread or weeknight dinner.

Give it a try and enjoy a dish that’s as easy to prepare as it is to love.

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