Preheat oven to 450. Line a baking sheet with foil or parchment paper. Cut all of the prosciutto pieces in half. Wrap one half around each piece of asparagus, tucking the ends underneath to hold in place. Place the wrapped asparagus pieces on the baking sheet, making sure to leave some room in between each piece.
Spray the pieces of asparagus with oil (lightly). Cut your lemon in half, and squeeze one half over all of the asparagus. Slice the other half into rounds and place them on top of the asparagus. Bake for 12 mins. Enjoy!