Pull skin away from meat of chicken, being careful not to tear it off. Spoon the herb mixture between the skin and the meat of the breast. Massage the chicken to spread the herb mixture around the inside of the bird. Liberally season the outside of the chicken with salt and pepper. Place the chicken on the rotisserie and cook over high heat (400°F) for 1 hour. Make sure there is a pan under the chicken to collect the drippings. When the chicken is done, set it aside and let it rest for 10 minutes.
While the chicken is resting, place the torn bread into a large salad bowl. Pour the reserved chicken drippings over the bread and toss to coat evenly. Toast the bread in a 375°F oven for 10 to 12 minutes or until the bread is brown. Place the spinach leaves in the salad bowl and return the bread to the bowl. Add the red onion, currants, pecans, plum vinegar, olive oil and sprinkle in a little salt and pepper. Toss the salad and place in a serving bowl. Cut chicken into bite-size pieces and add to salad.
In a small pan, toast bay leaves in a 350°F oven until lightly brown. Using a spice grinder, grind the leaves and place in a small bowl. Add the lemon zest, garlic, olive oil, salt and pepper to the ground bay leaves and stir the ingredients together.