I know it doesn't sound too grand or anything but this was easily one of the best things I've ever made. Rather than repost the receipe I'll just link to Epicirous where I got it...

A few things I changed were:
- Added a good bit more red pepper flakes and salt/pepper
- Added 2 large cloves of garlic, coarsely diced (would double this next time)
- Used fresh spinach fettuccine
- Went a little heavy on the olive oil and vegetable broth to make it saucier
- Only kept the top third of the asparagus
- Used shitake mushrooms

Was pretty quick and easy and tasted fantastic. No question I'll make this one again.