Chicken Souvlaki

INGREDIENTS

pieces whole grain flat bread or pitas

tomatoes, cut into wedges

1/2

small red onion, thinly sliced

1 1/2 tsp

dried oregano

1 1/2 tsp

dried thyme

1/4 tsp

salt

1/4 tsp

freshly ground black pepper

2 1/2 tsp

red wine vinegar, divided

1 tbsp

fresh lemon juice

5 tbsp

extra-virgin olive oil, divided

1 lb

boneless, skinless chicken breasts, cut into 1-inch pieces

1/2 cup

nonfat plain Greek yogurt

1/4

small cucumber, peeled, seeded, and diced

1/2 cup

crumbled feta

1/4 cup

kalamata olives, pitted and halved