MAKE IT
Step 1
Preheat oven 400º F. Bake pastry shells according to package directions; set aside.
Step 2
Toss asparagus and red pepper with olive oil in medium bowl. Place on baking sheet with sides.
Step 3
Bake for 15 minutes. Let cool.
Step 4
Combine evaporated milk, flour, tarragon, mustard, salt, and white pepper in medium saucepan over medium-high heat. Cook, stirring constantly, until sauce begins to thicken. Add Brie and continue to stir until melted. Add lemon juice and roasted vegetables; cook for one more minute, stirring occasionally.
Step 5
Spoon 1/3 cup mixture into individual shells. Top with pastry rounds. Serve immediately.
Substitute 1/2 cup jarred, roasted red peppers in place of fresh peppers, if desired.