Directions

Heat oil over medium heat in a medium saucepan. Add onion, garlic and asparagus and cook, stirring occasionally, until onions soften, 5-7 mins. Do not brown.
Add broth, bring to a simmer, and cook until asparagus is just tender about 10 mins.
Remove from heat and carefully puree w/ a blender or hand blender. Return to pan, gently reheat and season w/ s/p to taste. Sprinkle w/ parm cheese.