Green Bean Casserole Recipe for 40 People

Green bean casserole is a classic comfort dish that’s perfect for large gatherings like holiday feasts or family reunions. Its creamy, savory flavor combined with crispy fried onions makes it a crowd-pleaser that can be prepared ahead of time and easily scaled for big groups. This recipe is designed to serve approximately 40 people, ensuring everyone leaves satisfied with seconds to spare.

Ingredients

• Fresh green beans – 8 pounds (or 4 large 16-ounce cans of French-cut green beans, drained)
• Cream of mushroom soup – 4 cups (about 4 standard 10.75 oz cans)
• Milk – 2 cups
• Soy sauce – 4 tablespoons
• Black pepper – 2 teaspoons
• Fried onions – 4 cups (preferably crispy French fried onions)
• Butter – 4 tablespoons (optional, for greasing)
• Salt – to taste

Instructions

1. Preheat your oven to 350°F (175°C). Grease a large 12×20-inch baking dish or similar-sized casserole dish with butter or non-stick spray.
2. If using fresh green beans, trim and cut them into bite-sized pieces. Blanch the green beans in boiling water for 3-4 minutes until bright green and slightly tender, then drain and set aside. If using canned green beans, drain thoroughly and set aside.
3. In a large mixing bowl, combine the cream of mushroom soup, milk, soy sauce, black pepper, and a pinch of salt. Whisk until smooth and well combined.
4. Add the prepared green beans to the bowl and gently fold to coat evenly with the soup mixture.
5. Transfer the mixture into the prepared baking dish, spreading it out evenly.
6. Cover the dish with aluminum foil and bake in the preheated oven for 30 minutes. This allows the flavors to meld and the casserole to heat through thoroughly.
7. Remove the foil and sprinkle the crispy fried onions evenly over the top of the casserole.
8. Return the dish to the oven and bake uncovered for an additional 10-15 minutes, or until the onions are golden brown and crispy.
9. Allow the casserole to rest for 5 minutes before serving. This helps it set and makes it easier to serve clean slices.

Tips

• Substitutions: For a vegetarian version, use mushroom or vegetable broth instead of soy sauce for added flavor. You can also substitute fried onions with toasted panko breadcrumbs for a different crunch.
• Storage: Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 350°F for about 15-20 minutes or until warmed through.
• Common mistakes: Avoid overcooking the green beans during blanching to maintain their texture. Also, don’t skip the final baking step with fried onions, as it ensures a crispy topping.
• Scaling: For larger quantities, consider using multiple baking dishes or a commercial-sized oven to ensure even cooking.

Serving Suggestions

Green bean casserole pairs beautifully with roasted meats like turkey, chicken, or beef. Serve it alongside mashed potatoes, stuffing, and cranberry sauce for a traditional holiday meal. It also works well as a side dish for potlucks or buffet-style dinners, adding a touch of comfort and flavor to any gathering.

Variations

Looking to add a twist to the classic? Consider mixing in sautéed mushrooms, crumbled bacon, or shredded cheese into the casserole before baking. For a healthier take, swap out some of the fried onions for chopped fresh herbs or toasted nuts. You can also use different types of beans, such as wax beans or haricot verts, for a more refined look.

Storage and Reheating

Leftover green bean casserole can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, cover the dish with foil and bake at 350°F for 15-20 minutes until heated through. If reheating individual portions, microwave on high for 2-3 minutes, stirring halfway through. For best texture, avoid reheating multiple times, as the fried onions may lose their crispiness.

Frequently Asked Questions

Can I prepare this casserole ahead of time?

Yes, you can assemble the casserole up to 24 hours in advance. Cover it tightly with plastic wrap and refrigerate. When ready to serve, bake it directly from the fridge, adding an extra 10-15 minutes to the baking time to ensure it’s heated through.

Can I use frozen green beans instead of fresh or canned?

Absolutely. Thaw the frozen green beans completely and drain any excess moisture before mixing. Keep in mind that frozen beans may be softer, so handle gently to maintain some texture.

What if I don’t have fried onions?

You can substitute with toasted panko breadcrumbs mixed with a little melted butter for a crunchy topping. Alternatively, chopped nuts like pecans or walnuts can add a different but delicious crunch.

Is this recipe suitable for gluten-free diets?

To make it gluten-free, use a gluten-free cream of mushroom soup and gluten-free fried onions or omit the fried onions altogether. Double-check all packaged ingredients for gluten content to ensure safety.

Can I make this dish vegan?

Yes, substitute the cream of mushroom soup with a plant-based version or make your own cashew cream. Use soy or almond milk instead of dairy, and replace fried onions with crispy fried shallots or toasted chickpeas for crunch.

How do I keep the fried onions crispy?

For the crispiest topping, add the fried onions just before serving and avoid baking the casserole with them on top for too long. If preparing ahead, store the fried onions separately and sprinkle on just before serving.

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