One-Pot Shrimp and Asparagus Fra Diavolo

This fresh, springy take on a one-pot pasta has a spicy, lemony sauce, which gets thickened by the starch from the pasta. Because shrimp and asparagus steam through so quickly, it’s worth manning the stove to make sure they don’t overcook. If you’re sensitive to spice, you can remove the seeds from the chile before topping, or just omit all together. Prep tip: if the leeks are pretty dirty, put the sliced half-moons in a medium bowl and fill with water. Swish with your fingers to let the dirt fall to the bottom, then scoop the leeks out from the top of the liquid into a strainer.