How to Make Green Bean-Mushroom Casserole

Posted by Larita Shotwell on Saturday, September 7, 2024

Fresh leeks, creamy rich Gouda cheese sauce and meaty mushrooms brighten up this Thanksgiving mainstay.

Serving Size:

8

Active Time:

35 min.

Total Time:

1 hr., 5 min.

Ingredients

  • 2 lbs. green beans, trimmed
  • 2 Tbs. butter
  • 1 (10 oz.) pkg. mushrooms, sliced
  • 1 leek, white and light green parts only, chopped
  • 2 Tbs. all-purpose flour
  • 1 cup lower-sodium chicken broth
  • ½ cup heavy cream
  • 2 tsp. Worcestershire sauce
  • 4 oz. Gouda cheese, shredded, about 1 cup
  • 1 cup canned French-fried onions 
  • 2 Tbs. toasted sliced almonds

Instructions

  • Heat oven to 375°F. In large pot of boiling salted water, cook green beans over medium-high heat until just tender, about 5 min. Drain well. Pat dry with paper towels. Transfer to shallow 10-cup baking dish.
  •  Meanwhile, in large nonstick skillet, melt butter over medium-high heat. Add mushrooms and leek; cook, stirring occasionally, until softened and golden, about 5 min. Sprinkle flour over mixture; cook, stirring, until flour is absorbed, 1 min. Gradually stir in chicken broth and heavy cream; stir in Worcestershire sauce. Bring to a boil; reduce to medium-low and simmer, stirring, until thickened, about 2 min. 
  •  Remove from heat; stir in Gouda cheese until melted. Pour over green beans in baking dish and lightly toss; cover with foil. Bake 20 min. Remove foil; sprinkle with onions and almonds. Bake until lightly browned, 5–10 min.
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