Heat olive oil in a large skillet over medium heat. Add ground beef and cook for 5-7 minutes until browned. Drain excess fat.
Add garlic powder, onion powder, smoked paprika, ground cumin, salt, and pepper to the beef. Stir and cook for another 2 minutes.
Rinse quinoa under cold water. Combine with 2 cups of water in a pot. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes. Fluff with a fork after cooking.
In a medium bowl, combine Greek yogurt, dill, parsley, lemon juice, and olive oil. Stir until well combined and season with salt and pepper.
Assemble the bowl by dividing quinoa among four bowls. Top with seasoned beef, cherry tomatoes, cucumber, red onion, feta cheese, and olives. Drizzle with yogurt sauce.