Cut chicken breast into chunks then place in a bowl.
Add the garlic, lemon juice, lime juice, oregano, Greek yogurt, olive oil, salt and pepper. Mix well then set aside to marinate.
Slice the onion and tomato. Chop the fresh parsley, and add all to a bowl. Drizzle with olive oil, salt and peppr to taste. Mix and set aside to use as topping.
After the chicken has marinated for at least 2 hrs, place the chicken chunks on a skewer, and grill on a hot grill pan until fully cooked through.
Spread tzatziki sauce on a pita, then place the chicken on. Remove the skewer. Add salad garnish over top, and enjoy.
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Notes
You can eat the chicken right off of the skewer to keep this meal low carb. Add the salad on the side. It's delicious either way.