Heat a sauté pan over medium heat. Add the beef, onion powder, garlic powder, ground cumin, and salt. Sauté, using your spoon to break apart the meat and mix in the spices, until cooked through, about 10 minutes. Drain off excess fat.
Place the cooked beef in a large serving bowl. Place each of the remaining ingredients in small serving bowls and allow everyone to assemble their own taco or taco bowls.