This is a very good meatless main course dish. I was not able to find the pappardelle pasta so I substituted and not having fresh garden peas, I used frozen. I cut the preparation down to 1 pan. I cooked the pasta in the boiling water and the last few minutes I tossed in the asparagus and then the peas. When all was done, I drained, added the safron to the pan along with the butter, onion, zest and juice. This made for a beautiful presentation and really does require lots of fresly grated parmesan cheese.