Begin by heating a large pot with water to boil pasta. Poil pasta according to package. Drain, don't rinse, just set aside.
Whisk the milk and flour in a bowl and put to the side. In another large pan, heat butter. Once melted, add garlic and cook for no longer than a minute. Whisk in the milk.
Stir in the Italian seasoning with a good pinch of salt and pepper. Once the sauce has thickeckend, stir parm, lemon, and basil if using.Taste the sauce and adjust salt if needed
Add the shrim and cook for a few minutes, until cooked through and pink.
Add the pasta, tossing to combine. Top with fresh parm if you want. Enjoy!