Take the classic side dish out of the casserole and wrap it in a blanket of puff pastry for a creamy green bean-and-mushroom pie that could be served sliced or eaten handheld (we won't tell). Snappy beans and tough-yet-tender mushrooms are perfectly complemented by the buttery, flaky crust.
Recipe courtesy of Cooking Channel
Print
Mushroom and Green Bean Casserole Wellington
Total:
1 hr 30 min
Prep:
15 min
Inactive:
20 min
Cook:
55 min
Yield:
6 to 8 servings
Level:
Intermediate
Total:
1 hr 30 min
Prep:
15 min
Inactive:
20 min
Cook:
55 min
Yield:
6 to 8 servings
Level:
Intermediate

Ingredients

  • 2 teaspoons fresh thyme leaves
  • 1/2 cup dry white wine
  • 2 tablespoons all-purpose flour, plus more for dusting
  • 3/4 cup half-and-half
  • 2 tablespoons plain breadcrumbs
  • 1 sheet frozen puff pastry (half a 17.3-ounce package), thawed
  • 2 teaspoons Dijon mustard
  • 1 large egg, beaten
  • Large-flake sea salt, such as Maldon
  • Kosher salt
  • 8 ounces green beans, cut into 1-inch lengths
  • Freshly ground black pepper
  • 2 tablespoons olive oil
  • 1 tablespoon unsalted butter
  • 1 shallot, thinly sliced
  • 3 large Portobello mushrooms, stems and gills removed
  • 8 ounces shiitake mushrooms, stems removed and caps thinly sliced

Directions

Bring a medium pot of salted water to a boil. Add the green beans, and cook until bright green and tender-crisp, 2 to 3 minutes. Strain the beans in a colander, and run cold water over them until cooled. Season with 1/4 teaspoon kosher salt and a few grinds of pepper; set aside. 

Heat the oil and butter in a large skillet over medium heat. Add the shallots, and cook, stirring frequently, until soft, about 3 minutes. Cut each Portobello cap in half, cut crosswise into 1/4-inch-thick slices and add to the skillet; season with 1/2 teaspoon kosher salt and a few grinds of pepper. Cook, stirring frequently, until the Portobellos have started to soften and wilt, about 4 minutes. Add the shiitakes, thyme, 1/2 teaspoon kosher salt and a few grinds of pepper, and cook, stirring frequently, until the shiitakes have started to soften and wilt, about 3 minutes. Pour in the wine, bring to a simmer and stir until the liquid has evaporated, 2 to 3 minutes. Stir in the flour until the mushrooms are coated. Slowly stir in the half-and-half. Cook until thickened, about 3 minutes. Stir in the green beans, then remove the skillet from the heat and transfer the mixture to a large bowl. Let cool completely, then stir in 1 tablespoon of the breadcrumbs. 

Position an oven rack in the center of the oven, and preheat to 400 degrees F. Roll the puff pastry out on a floured sheet of parchment paper to a 13-inch square. Brush the surface of the pastry with the mustard, and sprinkle with the remaining 1 tablespoon breadcrumbs. 

Leaving a 1-inch border on the left and right sides of the pastry, pile the mushroom filling onto the puff pastry across the center, and shape it into a log about 3 inches wide. Fold the bottom half of the pastry over the filling, then roll it up so the bundle sits seam-side down. (You can use the parchment paper to help roll.) If any filling falls out while rolling, just push it back inside. Pinch together the open ends to seal, and crimp with a fork. The log should be about 12 inches long. Transfer the Wellington, on the parchment, to a baking sheet. Brush generously all over with the egg. Cut decorative slits down the length of the Wellington. Lightly sprinkle with sea salt and pepper. Bake until golden brown and bubbly, 30 to 35 minutes. Let rest for a few minutes. 

Trending Videos 6 Videos

Step-by-step photos

Steak Essentials 03:26

Everything you need to know to select and grill a perfect steak.

Similar Topics:

IDEAS YOU'LL LOVE

Fresh Green Bean Casserole

Recipe courtesy of Bobby Deen

Green Bean Casserole

Recipe courtesy of Michael Chiarello

Green Bean Casserole

Recipe courtesy of Tyler Florence

Green Bean Casserole

Recipe courtesy of Michael and Bryan Voltaggio

On TV

Food Quest

10am | 9c

Carnival Eats

10:30am | 9:30c

Carnival Eats

11am | 10c

Carnival Eats

11:30am | 10:30c

Carnival Eats

12pm | 11c

Carnival Eats

12:30pm | 11:30c

Carnival Eats

1pm | 12c

Carnival Eats

1:30pm | 12:30c

Good Eats

2pm | 1c

Good Eats

2:30pm | 1:30c

Good Eats

3pm | 2c

Good Eats

3:30pm | 2:30c

Cheap Eats

4pm | 3c

Cheap Eats

4:30pm | 3:30c

Cheap Eats

5pm | 4c

Cheap Eats

5:30pm | 4:30c

Cheap Eats

6pm | 5c

Cheap Eats

6:30pm | 5:30c
On Tonight
On Tonight

MasterChef Canada

8pm | 7c

Big Bad BBQ Brawl

10:30pm | 9:30c

Good Eats

11pm | 10c

Good Eats

11:30pm | 10:30c

Big Bad BBQ Brawl

2:30am | 1:30c

Good Eats

3am | 2c

Good Eats

3:30am | 2:30c