Preheat your oven to 350 degrees Fahrenheit.
In a large pot, bring water to a boil and cook 1 pound of bowtie pasta according to package instructions until al dente.
In a skillet, cook 1/2 pound of ground beef over medium heat until browned, then drain excess grease.
In a large bowl, combine the cooked beef, chopped cream cheese, 2 tablespoons of milk, and 24 ounces of pasta sauce until well mixed.
Add the drained bowtie pasta to the beef mixture and stir gently until coated.
Pour the mixture into a greased baking dish, top with 1 cup of shredded mozzarella cheese, and bake for 10-15 minutes until the cheese is bubbling and golden brown.