Yield
6 to 8 servings

How to Make It

Step 1

Snap off tough ends of asparagus (trimmed to about 5 inches). Cook in boiling water to cover 30 seconds; drain. Plunge asparagus into ice water to stop the cooking process; drain. Reserve 9 spears; set aside. Coarsely chop remaining asparagus; set aside.

Step 2

Unfold piecrusts; stack on a lightly floured surface, and roll into a 14-inch circle. Fit piecrust into an 11-inch tart pan, trimming excess dough. Line piecrust with foil, and fill with pie weights or dried beans. Place tart pan on a baking sheet.

Step 3

Bake at 425° for 12 minutes; remove weights and foil. Bake 2 more minutes. Cool on a wire rack.

Step 4

Melt butter in a skillet over medium-high heat. Add onion, and saute 5 minutes or until tender. Set aside.

Step 5

Brush bottom and sides of crust with mustard. Sprinkle with half of cheese, chopped asparagus, onion, and remaining cheese. Arrange reserved asparagus spears over cheese.

Step 6

Whisk together half-and-half and remaining ingredients. Pour mixture evenly over asparagus.

Step 7

Bake at 375° for 25 minutes or until set and golden brown. Let stand 15 minutes.

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