01 - Bring a large pot of salted water to a boil. Add fettuccine and cook according to package directions until al dente. Reserve 1/2 cup of the pasta cooking water, then drain the pasta and set aside.
02 - Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Season shrimp lightly with salt and pepper, then add to the skillet. Sauté for 2–3 minutes per side until pink and opaque throughout. Transfer shrimp to a plate and set aside.
03 - Reduce heat to medium. Add butter and remaining 1 tablespoon olive oil to the same skillet. Add minced garlic and sauté for 30 seconds until fragrant, being careful not to brown.
04 - Pour in heavy cream and bring to a gentle simmer. Stir in Parmesan cheese, black pepper, salt, and nutmeg. Cook for 2–3 minutes, stirring constantly, until sauce thickens slightly and cheese is fully melted.
05 - Add drained fettuccine to the saucepan. Toss gently with tongs to coat the pasta evenly. If sauce appears too thick, gradually add reserved pasta water until you reach the desired consistency.
06 - Return cooked shrimp to the pan and toss to combine with pasta. Stir in chopped parsley. Serve immediately, garnished with additional fresh parsley and lemon wedges on the side.