This is a go-to dinner in my house. You can have the entire family eating within 30 minutes, and it’s fun to get the kids involved in the cooking. You can switch out the pasta for another long cut like linguine, bucatini or angel hair. And you can sub cauliflower florets or baby carrots for broccoli; just be sure to adjust the steaming time.
Bring a large pot of salted water to a boil. Add fettuccine and cook according to package directions until al dente, 8 to 11 minutes. While the pasta cooks, place a steamer basket over the pot and place the broccoli in the basket. Cover and steam until tender, 3 to 4 minutes. Set aside.
Meanwhile, in a large saucepan or skillet, melt the butter over medium heat. Grate the half clove of garlic with a rasp grater into the butter and cook, stirring, about 1 minute. Stir in the cream, milk, and salt and pepper to taste. Bring to a simmer. Stir in the Romano and Parmesan, stirring until melted; the sauce will thicken. Turn off the heat and set aside until the pasta is done.
Drain the pasta, reserving about 1/2 cup of cooking liquid. Add the drained pasta to the cream sauce and stir until well coated. If the sauce seems too thick, stir in some of the reserved pasta cooking liquid to thin it until it coats the pasta well. Fold in the broccoli. Garnish with parsley and more Parmesan.