If you can never find ways to use an entire bunch of cilantro before it wilts in the refrigerator, search no further.
Fresh cilantro is the perfect foil for the guajillo chiles in olive oil and garlic.
If you can't find guajillos, dried red California chiles are a good substitute. In the restaurant where I first tried this, it was adorned with thin rings of chiles and a sprinkling of grated cheese. Begin bringing the water for the pasta to a boil, and while the pasta is cooking, heat the olive oil and butter over a medium flame, add the garlic and chile, and saut lightly. Remove from heat, and let the garlic and chile sit and soften while the pasta finishes cooking. Just before serving, return the pan with the garlic and chiles to the heat, add the cilanto, salt and pepper to taste, and continue cooking for another minute.