In large skillet, cook bacon until crisp; drain thoroughly. Crumble bacon; return to skillet. Add onion and garlic; cook over medium heat 3 minutes, stirring occasionally. Stir in spaghetti sauce; heat to boiling. Reduce heat; cook 5 minutes. Meanwhile, cook pasta according to package directions, adding broccoli to pasta cooking water during last 3 minutes. Drain pasta and broccoli well; toss with hot sauce. Sprinkle with cheese.