Spaghetti with collard green and lemon
2 tablespoons extra-virgin olive oil 2 garlic cloves, sliced 1/4 teaspoon red-pepper flakes 1 bunch collard greens (12 ounces), ribs removed, thinly sliced 1/4 cup pine nuts, toasted Grated zest of 1 lemon, plus more for serving 2 tablespoons fresh … Continued