Makes 6 servings at $1.50 each.
Cook penne following package directions; stir in broccoli for last 2 minutes.
Meanwhile, sauté onion in olive oil in large skillet 6 minutes, until softened. Add chicken; sauté 4 minutes. Stir in sun-dried tomatoes, heavy cream, chicken broth, balsamic vinegar, salt and pepper; simmer 4 minutes.
Drain pasta and broccoli; toss with chicken mixture and Parmesan cheese.