Roasted Asparagus with Lemon-Dijon Vinaigrette

This is my favorite way of enjoying asparagus.  It's super easy and oh, so tasty!  The asparagus is roasted to perfection, then it is tossed with the simple vinaigrette which makes the flavor really pop.  Delicious!  Enjoy!
-1 lb fresh asparagus
-2 Tbs extra virgin olive oil
-1/2 tsp salt
-1/2 tsp pepper
For the vinaigrette:
-1/2 lemon, juiced
-1/2 tsp Dijon mustard
-1/2 tsp salt
-1/2 tsp pepper
Preheat oven to 400 F.
Remove woody stems from asparagus, then tear each spear into 1 inch pieces.  Place on large baking sheet. Drizzle with the oil and sprinkle with the salt and pepper.  Give it a good stir, then spread in single layer.
Roast in preheated oven for about 10 minutes.
Meanwhile, in a small bowl, whisk all vinaigrette ingredients until nice and smooth.
Remove roasted asparagus onto serving bowl.  Drizzle the vinaigrette and mix well.  Enjoy!
Slightly adapted from a Melissa D'Arabian recipe.