Preparation:

Preheat oven to 300 degrees F. Heat a large skillet on medium-high. Add canola oil, then garlic. Cook until softened, about 3 minutes. Add onions, cooking until softened, about 5 minutes, before adding chicken. 

Add seasoning salt and pepper to chicken. Cook chicken for approximately 8 minutes each side, mixing onions more frequently. After flipping chicken, wrap pitas in aluminum foil and put into preheated oven.  

While chicken is cooking, divide romaine into 4 equal portions of 1 ½ cups each. Top with 1 tbsp each olives and feta. Drizzle with 1 tbsp oil and vinegar.

After chicken is cooked in center, cut into strips approximately ½-inch thick. Remove pitas, cut in half, and add equal parts chicken, onions, tomato, and tzatziki to each. Serve with salad and plenty of napkins.