Cook your pasta according to package directions, drain most of the water reserving about 1/2 cup to thicken the sauce.
Meanwhile, in a large skillet heat the olive oil over medium heat.
Add the onions cooking till they are translucent.
Add the ground beef, breaking apart and cooking till no longer pink. Drain excess fat if necessary.
Stir in the halved Brussels sprouts, garlic powder, coconut aminos, beef broth, salt, pepper, and red pepper flakes (if using).
Cover skillet cooking for about 10 minutes, stirring occasionally, till Brussels are tender.
Add the cooked pasta and reserved pasta water, stirring to coat the pasta with the sauce. Simmer 5 minutes.
Garnish with chopped parsley before serving.
Enjoy!