Heat olive oil in a large sauté pan over medium-high heat. Add garlic, and sauté until fragrant, about 2 minutes. Add fettuccine, and cook until warm, about 5 minutes. Add lemon zest and juice, and simmer until liquid is almost completely absorbed into pasta, about 4 minutes. Remove from heat, and stir in parsley and salt. Divide among 4 small plates, and garnish with pepper to taste.