Classic Green Bean Casserole Recipe

There’s a reason Classic Green Bean Casserole appears on almost every holiday table—it’s a creamy, crunchy, utterly comforting side that brings on the nostalgic vibes with every bite. Whether you’re a longtime fan or discovering it for the first time, this recipe is simple to make, crowd-pleasing, and the very definition of festive comfort food.

Ingredients You’ll Need

Let’s talk about the stars of this dish! The ingredients for Classic Green Bean Casserole are delightfully straightforward, but each one brings so much flavor and texture. From the creamy base to the crispy topping, these essentials are what make this side dish such a beloved classic.

• Canned Cut Green Beans: Canned beans are tender, mild, and hold up beautifully during baking—plus, no trimming or blanching required.
• Condensed Cream of Mushroom Soup: This is the cozy backbone of the casserole, providing savory depth and luscious creaminess.
• Whole Milk: Adds just enough richness to loosen the soup and make everything extra silky.
• French Fried Onions: These add signature crunch and flavor both mixed in and piled on top—don’t skimp!
• Onion Powder: A simple way to boost that irresistible savory goodness throughout the dish.
• Salt and Pepper: Essential for rounding out the flavors and bringing the entire casserole to life.

Variations

The beauty of Classic Green Bean Casserole is how endlessly adaptable it is! Don’t be afraid to put your spin on it—there are so many easy ways to tailor it to your taste, dietary needs, or pantry finds.

• Fresh or Frozen Green Beans: Swap in freshly blanched or thawed green beans if you want a firmer, brighter texture.
• Homemade Mushroom Sauce: Make a quick roux with butter, flour, milk, and mushrooms for a from-scratch version that’s just as cozy and even more flavorful.
• Add Cheese: Stir a little shredded cheddar or gruyère into the sauce for extra indulgence and tang.
• Vegan or Dairy-Free: Grab plant-based cream of mushroom soup and non-dairy milk, plus vegan crispy onions for a casserole everyone can enjoy.

How to Make Classic Green Bean Casserole

Step 1: Prep the Oven and Baking Dish

Start by preheating your oven to 350°F. Lightly grease a 9×13-inch baking dish with non-stick spray or a dab of butter—this helps the casserole serve up neatly later, with every piece sliding out in perfect creamy layers.

Step 2: Mix the Filling

In a large mixing bowl, combine the drained green beans, both cans of condensed cream of mushroom soup, whole milk, one can of French fried onions, onion powder, plus a good pinch of salt and pepper. Stir it all together until every bean is cloaked in that dreamy sauce and the flavors are well blended.

Step 3: Bake the Casserole

Transfer the mixture to your prepared baking dish and smooth it into an even layer. Slide it into the oven and bake for about 30 minutes—this melds all the flavors and gets everything piping hot and bubbly.

Step 4: Add the Crispy Onion Topping

Once the casserole is hot and bubbling, carefully remove it from the oven. Scatter the remaining French fried onions generously over the top, then return the dish to the oven for another 5 to 10 minutes—just until the onions turn perfectly golden and extra crispy.

Step 5: Serve Hot and Enjoy!

Let your Classic Green Bean Casserole rest for a few minutes before serving so it sets up a bit and those flavors can settle in. Then, dig in! It’s best when warm and delightfully crunchy on the top.

How to Serve Classic Green Bean Casserole

Garnishes

This casserole already comes crowned with plenty of golden, crispy onions, but for a little something extra, sprinkle on fresh chopped parsley, a dash of black pepper, or even a light dusting of smoked paprika for color and a hint of warmth.

Side Dishes

Classic Green Bean Casserole practically begs to be served with roast turkey, buttery mashed potatoes, and fluffy dinner rolls—though it cozies up nicely to ham, chicken, or even hearty vegetarian mains. Don’t forget the cranberry sauce for a sweet-tart contrast!

Creative Ways to Present

Try baking individual mini casseroles in ramekins for a restaurant-style touch, or spoon the casserole into a pretty serving bowl and garnish with herbs just before bringing it to the table. For a fun twist at potlucks, layer it in a wide, shallow dish so that every bite gets extra crispy topping.

Make Ahead and Storage

Storing Leftovers

Leftover Classic Green Bean Casserole keeps beautifully in the refrigerator—just cover the dish tightly with foil or plastic wrap, or store portions in airtight containers. It stays fresh for up to four days and makes an amazing day-after-holiday lunch!

Freezing

If you’d like to freeze, assemble the casserole (without the onion topping) and wrap well. Freeze for up to 2 months, then thaw in the fridge overnight. Add fresh onions before baking to maintain their signature crunch.

Reheating

Reheat individual portions in the microwave, or place the whole casserole dish (covered with foil) in a 350°F oven until hot and bubbling, about 20 minutes. For maximum crispiness, uncover for the last few minutes to re-crisp the onions.

FAQs

Final Thoughts

Whether you’re serving it at Thanksgiving, a family gathering, or just because you crave a bit of comfort, Classic Green Bean Casserole is one of those dishes that always brings a smile. Give it a try—it just might become a requested tradition at your table, too!

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