Toss chicken in extra-virgin olive oil and spices, set aside. You can leave up to 30 minutes, or longer in the refrigerator.
Cut veggies and toss in oil and salt, set aside.
Place the chicken breasts on one side of the grill and cook 8 minutes on each side, until it reaches an internal temperature of 165ºF.
On the other side of the grill, place a layer of greased tin foil and put the veggies on top. Cook veggies until desired softness, and cook chicken until fully cooked.
Make the vinaigrette by combining ingredients in your high-speed blender and blending until smooth.
Taste and adjust spices as needed.
Slice chicken. Serve chicken and veggies warm over romaine lettuce or baby spinach. Drizzle with tomato vinaigrette.