Preheat oven to 350°.

Wash all vegetables well.

Mix onions and asparagus in a 9" x 13" cooking pan.

Brush olive oil on the onions and asparagus until they are lightly coated on all sides.

Salt and pepper the onions and asparagus.

Lightly sprinkle parmesan on the onions and asparagus. (1/2 cup)

Toss the onions and asparagus until the vegetables are evenly coated with salt, pepper and cheese.

Bake vegetables for 35-40 minutes.

Once vegetables are soft take them out of the oven and sprinkle the rest of the parmesan cheese on top.

Serve.