Mix the ground turkey with garlic powder, onion powder, smoked paprika, salt, and pepper in a large mixing bowl until well incorporated.
Shape the mixture into four equal-sized patties.
In a skillet, heat the olive oil over medium heat and cook the patties for approximately 5-6 minutes on each side, ensuring they reach an internal temperature of 165°F.
Meanwhile, prepare the quinoa and chop the vegetables.
To assemble the bowls, start with a base of cooked quinoa, then layer on the turkey patties, followed by the cherry tomatoes, cucumber, avocado, red onion, and feta cheese.
If desired, add a drizzle of tzatziki sauce and finish with a sprinkle of fresh parsley.