Cut a package of thick chicken breasts into strips and toss into a Ziploc bag with 1 tbsp oregano, ½ tsp garlic powder, ½ tsp dried rosemary, ½ tsp salt and 1 tbsp olive oil.
Thread chicken onto skewers and grill over medium heat until fully cooked. (alternatively you can bake in the oven at 375 for 20 minutes).
To make Avocado Tzatziki: Combine 1 pitted avocado, ½ cup nonfat Greek yogurt, ½ tsp black pepper, ½ tsp kosher salt, 8 drops Tabasco sauce, ½ tsp garlic powder and 1 tsp oregano in a small food processor and blend until smooth.
Serve 3 oz cooked chicken with ½ whole wheat pita bread, 1 oz light feta cheese, cucumbers and tomatoes and top with 2 tbsp Avocado Tzatziki.