In a large frying pan, heat the oil over moderately low heat. Add the onion and sauté until it begins to soften, about 3 minutes. Stir in the garlic, oregano, and chili powder and cook, stirring, for 2 minutes.
Add the chorizo, tomato paste, and broth to the pan and stir. Bring to a simmer and cook, stirring occasionally, until slightly thickened, about 3 minutes. Add the black beans, the lime juice, and the salt and remove the pan from the heat.
In a large pot of boiling, salted water, cook the cavatappi until just done, about 13 minutes. Drain; toss with the sauce and parsley.
Test-Kitchen Tips: · For firm canned black beans rather than the usual mushy, overprocessed specimens, we prefer the Goya brand.: · If you use tomato paste in small quantities, consider buying a tube of one of the imported Italian brands. The tube lasts a long time in the refrigerator, just like anchovy paste, so you won't have to open a whole can for one or two tablespoons.
Wine Recommendation: A sparkling wine or crisp sauvignon blanc from California--or even a Mexican beer--is a good foil for this spicy dish.
Quick From Scratch Pasta