• An even faster way: Don’t bother with the steamer. Once the water boils, throw in the chopped stems and let them cook for a minute or two. Then add the pasta. When the pasta is about 2 minutes from being ready, toss in the chopped leaves. Drain the whole thing together.
• With particularly heavy greens such as broccoli rabe, wash and trim the whole bunch. Throw it into boiling water and cook for 3 minutes. Remove it, chop it roughly, and sauté it in garlic and oil while the pasta cooks.