Bring a large pot of heartily salted water to a boil. Meanwhile, make the ravioli.
Pinch off about a fourth of the dough at a time, knead it a bit, and then roll out the pasta sheets in a pasta roller. Keep the sheets floured and covered w/ a damp cloth while rolling out the others to prevent sticking and drying out. Alternately, you can use a rolling pin, but I find this difficult and very much love my hand crank pasta roller.
Either use a nifty ravioli mold as I have, or you can simply dollop your filling onto one sheet of pasta, about a heaping tsp of filling spaced about two inches apart, wet the spaces in between with a finger dipped in water, and then place another sheet on top, pressing to seal, getting out as much air as you possibly can. Cut the pasta and place on a flour dusted baking sheet while you continue to make the rest.
Cook the pasta in the boiling water, about 3 minutes. Meanwhile melt the butter in a large skillet over medium heat. When the butter is melted slowly whisk in the lemon juice along with a two finger pinch of salt. Transfer pasta with a slotted spoon to the lemon butter along with about half a ladle of the cooking water. Cook, shaking the pan every now and again, about another 4 minutes to let the sauce thicken and coat the pasta. In the last two minutes add the greens to just wilt. Serve garnished with crumbled crispy proscuitto and grated cheese.