1) Bring a large pot of water to a boil and salt it. Once boiling, add your pasta and cook to package directions. Save some pasta water.
2) Then in a large frying pan over medium low heat, add olive oil and garlic. Cook for 1 to 2 minutes or until fragrant, but not brown. Then add red pepper flakes, cooked pasta, pasta water, and parsley. Then stir vigorously with tongs. Season with salt and lemon juice to taste. Serve with Parmesan cheese and enjoy!