Place chicken in a large bowl. Drizzle olive oil over chicken, season with salt and pepper then the minced garlic and chopped thyme. Cover and marinate for 1 hour in the fridge.
Whisk together the dressing ingredients in a small bowl and set aside.
Preheat grill to medium high heat. Grill the chicken about 3 to 5 minutes per side until done then transfer to a cutting board and sliced into bite pieces.
Arrange the vegetables on a large platter. Top with grilled chicken and drizzle the dressing. Serve
Recipe by The Gluten Free at https://www.theglutenfree.com/gluten-free-herb-mediterranean-chicken-salad/