Cook pasta according to package directions, then drain.

Spray a skillet with nonstick cooking spray and heat over medium-high heat.

Add beef to the skillet and sprinkle with pepper.

Cook the beef for 2-3 minutes, stirring frequently, until browned.

Stir in broccoli, tomatoes, and beef broth.

Reduce heat to low, cover, and simmer for about 10 minutes, stirring occasionally, until broccoli is crisp-tender.

Mix cornstarch and Worcestershire sauce in a small bowl.

Stir the cornstarch mixture into the beef mixture.

Heat to boiling, stirring constantly.

Boil and stir for 1 minute.

Toss the beef mixture with the cooked pasta and serve.