Ingredients

- 8 +

• 2 cans (10.5 oz each) cream of mushroom soup, preferably low-sodium for better flavor control
• 4 cups fresh green beans, trimmed and cut into 2-inch pieces, or 2 (14.5 oz) cans green beans, drained thoroughly
• 1 1/2 cups crispy fried onions, divided for mixing and topping
• 1/2 cup whole milk or heavy cream for extra richness
• 1 teaspoon garlic powder for enhanced savory flavor
• 1 teaspoon black pepper, freshly ground for optimal taste
• 1/2 teaspoon sea salt, or to taste depending on soup sodium content
• 1/4 cup finely grated Parmesan cheese for extra depth of flavor
• 1 tablespoon Worcestershire sauce for umami enhancement

Instructions

1

Preheat your oven to 350F (175C) and position the rack in the middle for even heat distribution

✓ Done

2

If using fresh green beans, blanch them in boiling water for 5 minutes, then immediately plunge into ice water to maintain their bright color and crisp texture

✓ Done

3

In a large mixing bowl, combine the cream of mushroom soup, milk, garlic powder, black pepper, salt, and Worcestershire sauce until smooth and well blended

✓ Done

4

Gently fold in the green beans and 1 cup of the crispy fried onions until everything is evenly coated with the creamy mixture

✓ Done

5

Transfer the mixture to a 9x13 inch baking dish, spreading it evenly to ensure consistent cooking throughout

✓ Done

6

Cover the dish with aluminum foil and bake for 25 minutes until the mixture is hot and bubbly around the edges

✓ Done

7

Remove the foil, sprinkle the remaining 1/2 cup of crispy fried onions and Parmesan cheese over the top

✓ Done

8

Return to the oven uncovered and bake for an additional 5-10 minutes until the onions are golden brown and crispy

✓ Done

Kitchen Tools

• 9x13 inch baking dish for even heat distribution
• Large mixing bowl for combining ingredients thoroughly
• Colander for draining and rinsing green beans
• Measuring cups and spoons for precise ingredient portions
• Aluminum foil for covering during baking

Chef's Tips

Pat your green beans completely dry before mixing to prevent a watery casserole

Allow the casserole to rest for 5-7 minutes before serving to help the sauce thicken slightly

Use fresh green beans when possible for the best texture and nutritional value

Make your own cream of mushroom soup for an elevated homemade touch

Toast the fried onions briefly before using them as a topping for extra crunch

🔧 Troubleshooting Tips

️

If too watery, mix in 1 tablespoon of cornstarch with the soup before baking

️

If too dry, add a splash of milk or cream halfway through baking

️

If onions are browning too quickly, cover loosely with foil

️

If green beans are too firm, cover and cook for additional 5-10 minutes

🔄 Recipe Variations

Add sauted mushrooms and garlic for an extra savory dimension

Include crispy bacon bits for a smoky flavor profile

Mix in water chestnuts for additional crunch and texture

Top with a mixture of different cheese varieties for more complex flavor

🥗 Healthy Alternatives

Use low-fat cream of mushroom soup and skim milk to reduce calories while maintaining creaminess

Make your own crispy onion topping using panko breadcrumbs and a light coating of olive oil

Substitute half the green beans with mushrooms for added nutrients and fewer carbohydrates

Use Greek yogurt mixed with mushroom stock instead of cream of mushroom soup for a protein boost

🍽️ Serving Suggestions

Serve alongside roasted turkey or chicken for a classic holiday meal combination

Pair with mashed potatoes and gravy for the ultimate comfort food experience

Offer as part of a vegetarian feast with crusty bread and roasted vegetables

Include in potluck gatherings as a crowd-pleasing side dish that travels well

Nutrition Facts

245

Calories

6g

Protein

20g

Carbs

16g

Fat

🥗 Suitable Diets

Can be made gluten-free by using gluten-free cream of mushroom soup and onion topping

Vegetarian-friendly as a traditional recipe

Adaptable for dairy-free diets using plant-based cream soup and milk alternatives

Low-carb version possible with fresh green beans and modified sauce

🎨 Presentation Ideas

Sprinkle with fresh parsley for a pop of color

Add extra crispy fried onions just before serving

Dust with paprika for visual appeal and subtle flavor

Garnish with toasted sliced almonds for elegant presentation

📦 Storage & Conservation

Store leftovers in an airtight container in the refrigerator for up to 3 days

Keep the crispy onion topping separate when storing to maintain its crunch

Reheat in a 350F oven until hot throughout, adding fresh crispy onions if needed

Avoid freezing as the texture of the green beans and sauce can become compromised

♻️ Leftover Ideas

Reheat in the oven at 350F for 15-20 minutes until hot throughout

Create a green bean casserole grilled cheese sandwich

Mix into scrambled eggs for a savory breakfast option

Use as a filling for savory hand pies or turnovers

⚠️ Common Mistakes to Avoid

Using frozen green beans without thawing and drying them properly first

Adding too much liquid which results in a soupy consistency

Overcooking the casserole which can make the green beans mushy

Not covering the dish during initial baking, causing the top to brown too quickly

FAQ

Can I make this ahead of time? ▶

Yes, assemble up to 24 hours in advance, but add the crispy onions just before baking

How do I prevent my casserole from being watery? ▶

Ensure green beans are completely dry and don't add extra liquid beyond the recipe specifications

Can I use fresh mushrooms instead of cream of mushroom soup? ▶

Yes, saut fresh mushrooms and create a white sauce as the base

How do I know when it's done? ▶

The casserole should be bubbling around the edges and the topping golden brown

Reviews

Sarah M.

⭐⭐⭐⭐⭐

Jan 8, 2026

Perfect holiday side dish that reminded me of my grandmother's recipe!

Michael P.

⭐⭐⭐⭐☆

Jan 18, 2026

Delicious and easy to make, though I added extra garlic for more flavor.

Emma T.

⭐⭐⭐⭐⭐

Jan 18, 2026

The best green bean casserole I've ever made! The crispy onions stayed perfectly crunchy.

Robert K.

⭐⭐⭐☆☆

Feb 1, 2026

Good basic recipe, but needed more seasoning for my taste.

Linda B.

⭐⭐⭐⭐⭐

Jan 8, 2026

Made this for Thanksgiving and everyone wanted the recipe!