01 -
Bring a large pot of salted water to a boil. Add the penne pasta and cook according to the package instructions until al dente. Reserve about 1 cup of pasta water, then drain the pasta in a colander.
02 -
While the pasta is cooking, heat olive oil in a skillet over medium heat. Add minced garlic and sauté for about 1 minute until fragrant. Add the asparagus pieces to the skillet and sauté for 5-7 minutes until they are tender but still crisp.
03 -
Reduce the heat to low, then add the cooked penne pasta to the skillet along with lemon zest and lemon juice. Toss everything together until well combined, adding reserved pasta water as needed to loosen the sauce.
04 -
Season with salt and black pepper to taste. If desired, sprinkle grated Parmesan cheese and red pepper flakes over the pasta before serving.