Beef and Parmesan Pasta

This is very easy to make and it's all in one pot which makes it even better. I omitted the zucchini in mine. Makes 6 servings.

1 1/2 pounds lean ground beef
1 (14 ounce) can beef broth
1 (14.5 ounce) can Italian-style diced tomatoes
2 cups uncooked farfalle (bow tie) pasta
2 cups sliced zucchini, (1/4 inch thick)
3/4 cup grated Parmesan cheese, divided

In a large skillet over medium/high heat, brown the ground beef until no longer pink, breaking up into 3/4 inch pieces. Remove beef with a slotted spoon to a bowl. Pour off the drippings.
Return the skillet to the heat and add the beef broth, tomatoes, and pasta. Stir to coat all of the pasta. Bring to a boil and reduce heat to medium.
Cook, uncovered, for 15 minutes stirring frequently. Add zucchini and continue cooking for an additional 5 minutes or until pasta is tender.
Return beef to the skillet and stir in 1/2 cup of the cheese; heat through. Sprinkle the remaining cheese over each serving.