Green bean casserole is a classic comfort dish that’s perfect for large gatherings and holiday celebrations. Its creamy, crunchy topping combined with tender green beans makes it a crowd-pleaser that can be prepared in advance and easily scaled up for big groups. This recipe ensures you can serve 50 people with ease, delivering consistent flavor and texture every time.
Ingredients
- 10 pounds fresh green beans, trimmed and cut into 2-inch pieces
- 4 large cans (10.5 oz each) cream of mushroom soup
- 4 cups whole milk
- 4 teaspoons soy sauce (optional, for added flavor)
- 4 cups crispy fried onions, divided
- 2 teaspoons garlic powder
- Salt and freshly ground black pepper to taste
- 2 cups shredded cheddar cheese (optional, for extra richness)
- Butter or cooking spray for greasing the baking dish
Instructions
- Preheat your oven to 350°F (175°C). Grease a large 12×20-inch (or similar size) baking dish with butter or cooking spray to prevent sticking.
- Bring a large pot of salted water to a boil. Add the green beans and cook until tender-crisp, about 4-5 minutes. Drain thoroughly and set aside.
- In a large mixing bowl, whisk together the cream of mushroom soup, milk, soy sauce (if using), garlic powder, salt, and pepper until smooth. Add the shredded cheese if you choose to include it, and stir until well combined.
- Fold the cooked green beans into the soup mixture until evenly coated. Transfer the mixture into the prepared baking dish, spreading it out evenly.
- Sprinkle 2 cups of crispy fried onions evenly over the top of the casserole. This will give the dish its signature crunchy topping.
- Place the dish in the preheated oven and bake uncovered for 30-35 minutes, or until bubbling around the edges and heated through.
- Remove from the oven and sprinkle the remaining 2 cups of crispy fried onions on top. Return to the oven and bake for an additional 5-7 minutes, until the onions are golden brown and crispy.
- Allow the casserole to rest for 5 minutes before serving to let it set slightly, making it easier to serve clean slices.
Tips
- Substitutions: For a vegetarian version, use vegetable broth instead of milk and omit the cheese. To make it gluten-free, ensure the fried onions are gluten-free or substitute with crushed gluten-free crackers.
- Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F for 15-20 minutes or until hot, topping with fresh fried onions if desired.
- Common mistakes: Overcooking the green beans can make them mushy; cook until just tender. Also, avoid adding too much liquid, which can make the casserole watery.
- Crunchy topping tip: For extra crunch, add an additional layer of fried onions or crushed potato chips just before the final baking step.
Serving Suggestions
This green bean casserole pairs beautifully with roasted turkey, ham, or roast beef. It also works well as part of a large holiday buffet or potluck. Serve alongside mashed potatoes, stuffing, and a fresh salad for a complete meal. To keep it warm for serving, place it in a chafing dish or cover with foil and keep in a warm oven.
Variations
- Cheesy Green Bean Casserole: Incorporate shredded cheddar or Monterey Jack cheese into the mixture for extra richness.
- Vegan Version: Use a plant-based cream of mushroom soup, non-dairy milk, and crispy onion substitutes made from fried chickpeas or shallots.
- Add-ins: Mix in sautéed mushrooms, cooked bacon bits, or caramelized onions for added flavor and texture.
- Spicy Twist: Add a dash of hot sauce or red pepper flakes to the soup mixture for a spicy kick.
Storage and Reheating
Leftover green bean casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, place it in a preheated oven at 350°F (175°C) for 15-20 minutes, covered with foil to prevent drying out. Remove the foil in the last 5 minutes to re-crisp the onion topping. For quicker reheating, microwave individual portions for 2-3 minutes, but note that the topping may soften.
Frequently Asked Questions
Can I prepare this dish ahead of time?
Yes, you can assemble the casserole a day in advance. Cover it tightly with plastic wrap or foil and refrigerate. When ready to serve, bake it directly from the refrigerator, adding an extra 10-15 minutes to the baking time to ensure it heats through thoroughly.
How do I keep the fried onions crispy?
To maintain crispiness, add the fried onions only during the last 5-7 minutes of baking. If you make the casserole ahead of time, store the fried onions separately and sprinkle them on just before serving.
Can I freeze green bean casserole?
While freezing is possible, the texture of the green beans may change slightly, becoming softer. To freeze, assemble the casserole without the fried onions, wrap tightly, and store for up to 2 months. Thaw in the refrigerator overnight and bake at 350°F for 35-40 minutes, adding fried onions during the last 5 minutes.
What if I don’t have a large baking dish?
Use two smaller dishes or a large disposable aluminum pan. Just ensure the dish is oven-safe and can accommodate the full volume. Adjust baking times if using smaller dishes, checking for bubbling and golden topping.
Is it possible to make this vegetarian or vegan?
Absolutely. Use vegetarian or vegan cream of mushroom soup, non-dairy milk (like almond or soy), and plant-based fried onion substitutes. Check labels to ensure all ingredients are suitable for your dietary needs.
How do I prevent the casserole from becoming watery?
Drain the cooked green beans thoroughly and avoid adding excess liquid. Using a thicker soup or reducing the milk slightly can help maintain the casserole’s creamy but firm consistency. Baking uncovered also helps excess moisture evaporate.
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