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  3. Classic Green Bean Casserole
Green bean casserole with golden crispy fried onions on top

Creamy green beans topped with crispy fried onions

Classic Green Bean Casserole

Prep Time

15 min

Cook Time

35 min

Total Time

50 min

Servings

8

9x13 baking dish

Difficulty

Easy

Cost

Budget

$

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Classic Green Bean Casserole

Creamy green beans topped with crispy fried onions

★4.6(12)

Tender green beans in a velvety mushroom cream sauce topped with shatteringly crispy fried onions. This Thanksgiving classic has earned its permanent spot on the holiday table.

15m

Prep Time

35m

Cook Time

50m

Total Time

8

Servings

Easy

Difficulty

Budget $

Cost

American CuisineSide Dish
Sarah Chen
Sarah Chen

December 25, 2025(Updated March 15, 2026)

This green bean casserole upgrades the retro classic with a from-scratch mushroom cream sauce instead of canned soup. The crispy onion topping bakes right on top for irresistible crunch.

This is the kind of recipe that defines American home cooking at its best — straightforward, satisfying, and built on flavors that everyone loves.

Why This Recipe Works

A homemade mushroom sauce gives this dish a richer, more complex flavor than the canned version. Blanching the green beans first ensures they stay bright green and perfectly tender.

Ingredients

  • 1 1/2 lbs fresh green beans, trimmed
  • 8 oz mushrooms, sliced
  • 1 cup heavy cream
  • 2 tbsp butter
  • 1 1/2 cups crispy fried onions
  • 2 cloves garlic, minced

Instructions

  1. 1

    Blanch green beans in boiling salted water for 4 minutes, then plunge into ice water to stop cooking. Drain well.

  2. 2

    Melt butter in a skillet over medium heat. Saute mushrooms for 5 minutes until golden, then add garlic and cook 1 minute more.

  3. 3

    Stir in heavy cream and simmer for 3-4 minutes until slightly thickened. Season with salt and pepper.

  4. 4

    Toss green beans with the mushroom cream sauce and pour into a greased 9x13 baking dish. Top with fried onions.

  5. 5

    Bake at 375°F for 20-25 minutes until bubbly and the onions are deeply golden.

Serving Suggestions

Ways to Serve This Dish

  • Serve with classic coleslaw and cornbread on the side

  • Pair with fresh-cut fries or roasted potato wedges

Substitutions

Heavy creamCream of mushroom soup (1 can)

The traditional shortcut that still works well

Crispy fried onionsPanko breadcrumbs tossed with butter

A less sweet, equally crunchy topping

Tips & Storage

Pro Tips

  • Use fresh green beans instead of canned for the best texture and color.

  • Reserve half the fried onions and add them during the last 5 minutes of baking so they stay extra crispy.

  • Let the protein rest for 5-10 minutes after cooking to allow the juices to redistribute for maximum tenderness.

  • Season each component individually rather than seasoning at the end — this builds deeper, more complex flavor throughout.

Storage

Refrigerate assembled casserole (without onion topping) for up to 2 days.

Reheating

Reheat at 350°F for 20 minutes, adding fresh fried onions on top.

Nutrition Facts

Per serving (35mg) · 8 servings

Calories220
LowModerateHigh

A moderate-calorie serving · based on a 2,000 cal daily diet

Protein5g
Carbohydrates16g
Fat15g
Fiber380mg
Sugar3g
Sodium4g

Nutritional values are approximate and may vary based on specific ingredients and preparation methods.

Frequently Asked Questions

Can I use frozen green beans?
Yes, thaw and pat dry first to prevent a watery casserole.
Can I make it ahead?
Assemble without the onion topping, refrigerate, then add onions and bake when ready.

Explore More

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Sarah Chen

About Sarah Chen

Sarah Chen is a professional recipe developer and food editor with over a decade of experience in test kitchens and food media. She trained at the Culinary Institute of America before spending six years developing and testing recipes for national food publications, where she honed her ability to translate restaurant techniques into approachable home cooking. At RecipePool, Sarah leads recipe development, ensuring every dish is tested at least three times for clarity, accuracy, and genuine deliciousness. When she is not in the kitchen, she is browsing farmers markets and collecting vintage cookbooks.

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