This Best Green Bean Casserole is the ultimate holiday side dish—creamy, comforting, and topped with crispy fried onions. It’s the perfect blend of tender green beans, rich mushroom sauce, and golden crunch, making it a must-have for Thanksgiving, potlucks, and Sunday dinners. Made with simple ingredients and minimal prep, this timeless classic never fails to impress.

What Makes This Dish Special?

Green Bean Casserole is a comfort food icon for a reason. It’s simple yet deeply satisfying, with a creamy mushroom base, crisp-tender green beans, and a buttery onion topping that adds the perfect crunch. Whether you use fresh, frozen, or canned green beans, this dish comes together with pantry staples and always delivers nostalgic flavor.

Cooking Time

Prep Time: 10 minutes
Cook Time: 30 minutes
Total Time: 40 minutes
Servings: 6

Ingredients

1 (10.5 oz) can cream of mushroom soup
½ cup milk
1 tsp soy sauce (optional, for umami)
¼ tsp black pepper
4 cups cooked green beans (fresh, canned, or frozen)
1 ½ cups crispy fried onions, divided
Optional: ½ cup shredded cheddar cheese for a cheesy version

Instructions

1. Preheat the Oven

Preheat your oven to 350°F (175°C). Lightly grease a 9×9 or 8×8-inch baking dish.

2. Make the Sauce

In a large bowl, mix together the cream of mushroom soup, milk, soy sauce (if using), and black pepper until smooth.

3. Combine the Ingredients

Add the cooked green beans and ⅔ cup of the crispy fried onions to the sauce mixture. Stir until everything is well coated.

4. Assemble and Bake

Pour the mixture into the prepared baking dish. Bake for 25 minutes, until hot and bubbling.

5. Add the Topping

Carefully remove the dish from the oven and top with the remaining crispy fried onions (and cheese if using). Return to the oven for an additional 5 minutes, or until the topping is golden.

6. Serve Warm

Let cool slightly and serve hot alongside your favorite main dishes.

Variations

Fresh Twist: Use blanched fresh green beans for more texture.
Cheesy Upgrade: Mix in shredded cheddar or parmesan for extra richness.
Garlic Mushroom Version: Sauté fresh mushrooms with garlic and stir them into the base.
Bacon Lovers: Add cooked, crumbled bacon for smoky flavor.

Equipment You’ll Need

Mixing bowl
9×9 or 8×8-inch baking dish
Spoon or spatula
Oven

Nutritional Information (Approx. Per Serving)

Calories: 180
Protein: 4g
Carbohydrates: 16g
Fat: 11g
Fiber: 2g
Sugar: 3g

Storage Tips

Refrigerator: Store leftovers in an airtight container for up to 3 days.
Reheat: Warm in the oven or microwave until heated through.
Freezing: Best served fresh, but you can freeze before baking. Add onions after thawing and bake as directed.

My Cooking Experience

This casserole is a go-to in my kitchen every holiday season. I’ve tried it with fresh green beans, homemade mushroom sauce, and even added a layer of cheese—and it always disappears from the table. It’s a nostalgic recipe that brings warmth to any gathering and is just as great on a weeknight as it is on a special occasion.

Conclusion

The Best Green Bean Casserole is creamy, savory, and topped with irresistible crunch. Whether it’s part of a holiday feast or a cozy weeknight dinner, it brings big flavor with minimal effort. Simple, satisfying, and endlessly customizable, this dish is sure to become a regular in your recipe rotation.

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