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 cooking water before draining. Set pasta aside.
02 - Heat 1 tablespoon olive oil in a large skillet over medium-high heat. Season shrimp with salt and pepper, add to skillet, and cook for 2–3 minutes per side until pink and opaque. 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. Sauté minced garlic for 30 seconds until fragrant, being careful not to brown.
04 - Pour in heavy cream and bring to a gentle simmer. Whisk in Parmesan cheese, black pepper, salt, and nutmeg. Cook for 2–3 minutes, stirring continuously, until sauce thickens slightly.
05 - Add drained fettuccine to the skillet. Toss gently to coat noodles evenly. If sauce appears too thick, incorporate reserved pasta water one tablespoon at a time until desired consistency is achieved.
06 - Return cooked shrimp to the pan and toss to combine. Stir in chopped parsley. Serve immediately, garnished with additional parsley and lemon wedges if desired.