I’m so excited to share with you my family’s favorite French green bean casserole recipe. This dish has been a staple at our holiday gatherings for years, and I’m sure it will become a favorite in your household too. The combination of tender green beans, crispy fried onions, and creamy sauce is absolutely irresistible.
My kids love helping me prepare the ingredients, and they can’t get enough of the finished product. We often serve it alongside roasted meats or as a side dish for weeknight meals. The best part?
It’s incredibly easy to make and requires minimal prep time, making it perfect for busy families like mine. I’ve even convinced my husband to take it to his office potlucks – everyone loves it! One of the things I love about this recipe is that it’s a great way to get your daily dose of green beans, which are packed with fiber, vitamins, and minerals.
My family also appreciates the fact that this casserole is relatively low in calories and fat compared to other comfort foods. Over the years, I’ve tweaked this recipe to make it even more delicious and convenient for our family’s tastes and schedule. For instance, I now use fresh green beans instead of frozen ones, which makes a huge difference in texture and flavor.
I’ve also started using store-bought french-fried onions instead of making my own – saves me time and effort! And let’s not forget the secret ingredient that takes this casserole from good to great: a sprinkle of grated cheddar cheese on top before baking.
Classic French Green Bean Casserole
4.7 from 1821 votes
A creamy, savory casserole featuring tender green beans, a rich mushroom sauce, and a crispy fried onion topping. This beloved side dish is perfect for holiday dinners or any family gathering.
1 1/2 pounds fresh green beans, trimmed and halved
1 tablespoon olive oil
1/2 teaspoon salt
For the Mushroom Sauce
3 tablespoons unsalted butter
8 ounces cremini mushrooms, sliced
1 small onion, finely chopped
3 cloves garlic, minced
3 tablespoons all-purpose flour
1 1/2 cups whole milk
1/2 cup heavy cream
1/2 teaspoon salt
1/4 teaspoon black pepper
1/4 teaspoon ground nutmeg
For the Topping
1 1/2 cups crispy fried onions (store-bought or homemade)
1/4 cup grated Parmesan cheese (optional)
👨🍳Directions
1Preheat the oven to 375°F (190°C).
2Bring a large pot of salted water to a rolling boil over high heat.
3Add the green beans and blanch for 3 minutes until bright green and slightly tender, then drain in a colander and rinse with cold water to stop the cooking process.
4In a large skillet, melt the butter over medium heat.
5Add the sliced mushrooms and chopped onion, cooking for 5 to 6 minutes until the mushrooms release their liquid and begin to brown.
6Stir in the minced garlic and cook for 1 minute until fragrant.
7Sprinkle the flour over the mushroom mixture and stir constantly for 1 minute to cook out the raw flour taste.
8Gradually pour in the milk and heavy cream while whisking continuously to prevent lumps, then add the salt, pepper, and nutmeg.
9Bring the sauce to a gentle simmer over medium heat, stirring often, and cook for 2 to 3 minutes until it thickens enough to coat the back of a spoon.
10Remove from heat and fold in the blanched green beans until evenly coated.
11Transfer the green bean mixture to a greased 9×13 inch baking dish and spread it into an even layer.
12Sprinkle the crispy fried onions evenly over the top, and if using, add the Parmesan cheese as well.
13Bake the casserole in the preheated oven for 20 to 25 minutes until the sauce is bubbly around the edges and the topping is golden brown.
14Let it rest for 5 minutes before serving to allow the sauce to set slightly.
For a lighter version, use half-and-half instead of heavy cream and reduce the butter to 2 tablespoons. You can also substitute canned or frozen green beans; if using canned, drain and rinse them, then skip the blanching step.
Watch Video Of How Classic French Green Bean Casserole Works
This French green bean casserole recipe has been a staple in our household for years, and its versatility makes it perfect for any occasion. Whether you’re hosting a holiday feast or just need a comforting side dish for weeknight meals, this recipe delivers.
The best part? It’s incredibly easy to store and reheat – simply refrigerate or freeze leftovers as needed and reheat when you’re ready.
❓ Frequently Asked Questions About French Green Bean Casserole
Q: What type of green beans should I use for this recipe?
A: Fresh or frozen green beans work well in this recipe; however, fresh beans provide a better texture and flavor. If using frozen beans, make sure to thaw them before proceeding.
Q: Can I substitute the cream of mushroom soup with another type of soup?
A: Yes, you can use cream of chicken or celery soup as substitutes; however, keep in mind that these alternatives may alter the flavor profile of the dish.
Q: How do I ensure the onions don’t burn during the frying process?
A: To prevent burning, fry the onions in batches if necessary, until they’re golden brown but not blackened. Keep an eye on them constantly while they’re cooking.
Q: Can I prepare this casserole ahead of time?
A: You can assemble the casserole up to 24 hours in advance; however, bake it just before serving for optimal results.
Q: What temperature is best for baking this casserole?
A: Bake at 350°F (175°C) for a golden-brown crust on top.
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