Spatchcock the chicken by cutting along the backbone on one side with a kitchen shears and opening it like a book.  Spread a tablespoon of olive oil on the chicken and sprinkle with salt 

Mix bread with olive oil and both vinegars, salt & pepper to taste

Place bread salad in a cast iron skillet or roasting pan with chicken on top

Squeeze the juice of one lemon over the whole thing

Cover the bottom of a smaller cast iron skillet or roasting pan with aluminum foil and spray with cooking spray

Place smaller pan on large pan and roast in a 400 degree oven  for 30 to 40 minutes or until the internal temperature of the chicken reaches 160.

Remove from oven and let rest for 15 to 20 minutes

Cut chicken into pieces and serve with the bread salad