Bring a large pot of water to a rolling boil, when boiling add entire bag of frozen broccoli, cook until water again reachs a rolling boil
Add the pasta to the broccoli in the boling water. Cook pasta and broccoli together until pasta is al dente. Drain well.
While broccoli and pasta are cooking, melt 1 tablespoon of butter in large skillet over medium-high heat. Stir in chicken, breaking up the pieces with wooden spoon.
Add Old Bay seasoning, garlic powder and onion powder to chicken, stir until well combined.
Add pasta sauce to chicken mixture, stir and add milk. Heat until steaming, but not boiling.
Add drained pasta and broccoli to skillet. Use tongs to toss the pasta with the sauce until the pasta is completely covered with sauce.