Cook the fettuccine pasta according to package instructions in a large pot of salted boiling water until al dente. Drain and set aside, reserving 1/2 cup of pasta water.
In a large skillet, heat the olive oil over medium heat. Add the minced garlic and sauté for about 1 minute until fragrant.
Add the shrimp to the skillet and season with salt, pepper, and Italian seasoning. Cook for 2-3 minutes on each side until the shrimp are pink and opaque. Remove the shrimp from the skillet and set aside.
In the same skillet, pour in the heavy cream and bring to a gentle simmer. Stir in the Parmesan cheese until melted and the sauce is smooth. If the sauce is too thick, add reserved pasta water a little at a time until desired consistency is reached.
Return the cooked shrimp to the skillet and toss to coat in the sauce. Add the cooked fettuccine and mix until well combined.
Serve immediately, garnished with chopped parsley.