Description

This elevated Thanksgiving Green Bean Casserole transforms the classic holiday side into a show-stopping dish. With fresh green beans, creamy sauce, earthy mushrooms, and crispy fried onions, it’s a restaurant-quality version that honors tradition while adding gourmet flair to your holiday table.

Ingredients

Scale

1.5 lbs fresh green beans, trimmed and halved
8 oz cremini or button mushrooms, finely sliced
3 cloves garlic, minced
2 tbsp unsalted butter
1 tbsp olive oil
1 can (10.5 oz) condensed cream of mushroom soup
1/2 cup low-sodium chicken or vegetable stock
1/2 cup half-and-half or whole milk
1 tsp kosher salt
1/2 tsp black pepper
1/2 tsp smoked paprika (optional)
1 tsp soy sauce or Worcestershire
1 cup shredded sharp cheddar (optional)
1.5 cups crispy fried onions, divided
1/4 cup grated Parmesan (optional)
Substitutions:
Use frozen green beans (reduce blanching to 2 minutes)
Replace soup with homemade béchamel for gourmet flavor
Plant-based butter and cashew cream for dairy-free version

Instructions

Preheat oven to 375°F (190°C) and grease a 9×13-inch baking dish.
Blanch green beans in salted boiling water for 3–4 minutes until crisp-tender. Transfer immediately to ice bath, drain, and dry thoroughly.
In a skillet, melt butter and olive oil over medium heat. Add mushrooms and cook 5–6 minutes without stirring for proper browning. Add garlic and cook 30 seconds until fragrant.
Stir in condensed soup, stock, and half-and-half. Add salt, pepper, paprika, and soy sauce. Simmer 2–3 minutes until thickened. Stir in cheddar cheese if using.
Combine green beans with sauce and 1/2 cup fried onions, mixing gently to coat evenly.
Transfer mixture to prepared baking dish. Top with remaining fried onions and Parmesan.
Bake 15–20 minutes until bubbling and golden. Tent with foil if onions brown too quickly.
Rest 5 minutes before serving to allow sauce to set.

Notes

For best results, blanch beans only 3–4 minutes and use fresh mushrooms for depth of flavor. Make ahead up to 2 days (without onion topping) and refrigerate. Add fried onions before baking for maximum crispiness.

Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Side Dish
Method: Oven-Baked
Cuisine: American

Nutrition

Serving Size: 1 portion
Calories: 230
Sugar: 4g
Sodium: 520mg
Fat: 14g
Saturated Fat: 6g
Unsaturated Fat: 8g
Trans Fat: 0g
Carbohydrates: 18g
Fiber: 3g
Protein: 6g
Cholesterol: 20mg

Keywords: thanksgiving green bean casserole, holiday side dish, creamy casserole, green beans with mushrooms, crispy onions