01 - Cook fettuccine in a large pot of salted boiling water until al dente. Reserve 1/2 cup pasta cooking water, then drain and set aside.
02 - Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Season shrimp with salt and pepper, sauté 2–3 minutes per side until pink and opaque. Remove and set aside.
03 - Reduce heat to medium. Add butter and remaining olive oil to the skillet. Sauté minced garlic for 30 seconds until fragrant.
04 - Pour in heavy cream and bring to a gentle simmer. Add Parmesan, black pepper, salt, and nutmeg. Simmer 2–3 minutes, stirring constantly, until sauce thickens slightly.
05 - Add drained fettuccine to the sauce, tossing gently to coat. Add reserved pasta water a little at a time if needed to reach desired consistency.
06 - Return shrimp to the pan and toss to combine. Stir in chopped parsley. Serve immediately, garnished with extra parsley and lemon wedges.