Place the turkey carcass in a large stockpot and cover with water, breaking up the carcass if necessary. Bring the water to a boil, then reduce the heat and simmer, covered, for about 2 hours.
Turkey carcass, Water
Discard the bones and strain the stock through a cheesecloth.
Place 4 cups of stock back in the stockpot. Save the remaining stock for another use or freeze it.
Bring the stock to a boil, then add the lentils, onions, celery, and carrots. Simmer gently for 40 minutes or until the lentils are almost done.
12 ounces lentils, 1 medium onion, 1 cup celery, 2 large carrots
Add the diced turkey, rice, and Herbes de Provence. Continue heating for another 5 to 10 minutes, then season with salt and pepper before serving.
2 cups cooked turkey, 1 cup cooked brown rice, 1 teaspoon Herbes de Provence, Salt & freshly ground pepper