Bring a few inches of water to a boil. Salt the water and parboil the broccolini, rabe or broccoli for 4-5 minutes. Drain and cold shock, then dry on kitchen towels.
Bring a large pot of water to a boil for the pasta and undercook the pasta by about 2 minutes.
Pre-heat the oven to 425°F.
Heat a saucepot over medium heat with the EVOO and butter. Sauté the shallots, garlic and chili pepper for 2-3 minutes, then add the flour and stir for 1 minute. Whisk in the milk and season the sauce with salt and pepper; melt in the cheddar and Gouda.
Combine the pasta with the broccolini, rabe or broccoli and the sauce and transfer to a baking dish. Top with the Parmigiano Reggiano cheese, sprinkle with fresh thyme and bake until brown and bubbly.
This is one of many “Yum-o!” recipes – it’s good and good for you. To find out more about Yum-o!, Rachael’s nonprofit organization, go to www.yum-o.org.