Rinse asparagus with cool water. Break off the tough ends. Place asparagus spears in oven safe baking dish lined with foil or parchment paper. Lay spears singly on bottom of dish. Brush all sides with Dijon mustard. Drizzle with melted butter. Bake in a 400° oven for about 8 minutes or until tender. Remove from oven, sprinkle with Parmesan cheese and (if using) sprinkle bread crumbs over cheese, return to oven for about 2 minutes. Serve warm.
Notes
Another great topping for baked asparagus is:1 tbl achiote paste from a brick 2 tbl room temperature butterCombine the butter and achiote paste until smooth and well mixed. When asparagus come out of the oven, scatter chunks of the achiote butter over the hot asparagus.