A white baking dish of green bean casserole with crispy onions, photographed from above.

Green Bean Casserole

Tender green beans in a creamy mushroom sauce topped with crispy fried onions. The quintessential American holiday side dish.

Prep Time
10 min
Cook Time
35 min
Total Time
45 min
Servings
6 servings
Calories
200 kcal

Ingredients

6 servings

Instructions

  1. Heat oven to 350°F (175°C).

  2. Melt butter in a skillet; cook mushrooms until golden, about 6 minutes.

  3. Stir in flour, then milk and soup; simmer until smooth, about 3 minutes.

  4. Fold in green beans and half the fried onions; transfer to a baking dish.

  5. Bake 25 minutes until bubbly. Top with remaining onions and bake 5 minutes more.

  6. Serve hot.

Nutrition

Per serving, estimated.

Calories
200 kcal
Protein
5g
Carbs
16g
Fat
13g
Fiber
3g

Tips

  • Blanch the beans first so they stay green and crisp-tender.
  • Add the topping onions late so they stay crunchy.
  • Fresh mushrooms taste far better than the canned soup alone.

Variations

  • Use fresh green beans instead of canned.
  • Add a pinch of garlic powder to the sauce.
  • Stir in shredded cheddar for richness.

Frequently Asked Questions