01 - Bring a large pot of salted water to a boil. Add pasta and cook until al dente, about 8–10 minutes. Reserve 1/4 cup of the cooking water. Drain the pasta.
02 - While pasta cooks, heat olive oil in a skillet over medium heat. Add minced garlic and red pepper flakes, sauté for 1 to 2 minutes until fragrant.
03 - Add the cooked shrimp to the skillet and toss gently for 1 to 2 minutes until heated through.
04 - Add drained pasta, reserved cooking water, lemon juice, and chopped parsley to the skillet. Toss everything together until evenly coated and heated through.
05 - Divide between plates and garnish with extra parsley or lemon wedges if desired. Serve immediately.