Cook pasta according to package instructions. Drain and set aside.
Hamburger
Preheat oven to 350° F.
In a large skillet, cook the ground beef and onions until the meat has browned and the onions have softened. Stir in garlic, seasoned salt, and pepper to desired taste. Drain fat from the pan. Stir in cream of chicken soup, sweet corn, sour cream, and milk. Combine well. Taste test and season as needed. Combine cooked noodles and mix well.
Transfer the mixture into a 9x13 baking dish. Top with bread crumbs and place slices of butter along the top of the bread crumbs.
Bake, uncovered, in a 350° F oven for about 45 minutes. Top with dried parsley and serve.