I saw him made this on his show before and have made it many times since. Definitely yummy. You can use spaghetti, but he said he used angel hair because it cooks quickly. I usually add in some frozen spinach that I have defrosted.
This was so simple and rather good. A little too much olive oil and I think I'll drop that by half next time. But over all this made for a nice simple side to go with our steaks.