Bring a large pot of lightly salted water to a boil. Place linguini in the pot, and cook for 5 minutes. Stir in the broccoli. Continue cooking 3 to 5 minutes, until linguini is al dente and broccoli is tender; drain.
Place bacon in a large, deep skillet. Cook over medium high heat until evenly brown. Drain, crumble, and return to skillet.
Mix the onion and garlic into the skillet, and cook until onions are tender. Stir in the spaghetti sauce, and cook until heated through. Serve over the cooked pasta and broccoli, and top with Parmesan cheese.
