Step 1

Preheat oven to 350 degrees F. Lightly oil a 9×13 baking dish or coat with nonstick spray.

Step 2

In a large pot of boiling salted water, blanch green beans until bright green in color and tender crisp, about 2 minutes. Drain well and cool in a bowl of ice water. Drain well and set aside.

Step 3

In a small bowl, whisk together cornstarch and 2 tablespoons water; set aside.

Step 4

Melt butter in a large skillet over medium high heat. Add garlic, mushrooms, onion, thyme and nutmeg. Cook, stirring occasionally, until tender, about 3-4 minutes; season with salt and pepper, to taste. Stir in milk, heavy cream and Worcestershire.

Step 5

Bring to a boil; reduce heat and stir in cornstarch mixture until thickened, about 2-3 minutes. Stir in green beans.

Step 6

Add green bean mixture to prepared baking dish. Sprinkle with fried onions. Place into oven and bake until bubbly and golden brown, about 15 minutes.

Step 7

Serve immediately.