Cauliflower Alfredo Sauce

Name: Cauliflower Alfredo Sauce
Ingredients: Sea salt and coarsely ground black pepper; 2 cups cauliflower florets; 1 pound fettuccine noodles; 1 cup 2 percent milk; 3 tablespoons unsalted butter; 1 clove garlic, lightly smashed; 1 1/2 cups grated Parmesan; Olive oil, for searing the shrimp; 15 to 20 peeled medium shrimp; Chopped fresh parsley, for garnish