1In 10-inch skillet, cook beef over medium-high heat 5 to 7 minutes, stirring frequently, until brown; drain. Stir in hot water, milk, sauce mix and uncooked pasta (from Hamburger Helper box) and thawed vegetables. Heat to boiling, stirring occasionally.
2Reduce heat; cover and simmer about 10 minutes, stirring occasionally, until pasta and vegetables are tender. Remove from heat.
3Meanwhile, make potatoes as directed on box for 6 servings. Spoon and gently spread mashed potatoes over pasta mixture. Sprinkle with cheese. Cover; let stand about 5 minutes or until cheese is melted. Sprinkle with parsley.