In a very large stew pot, heat the oil over medium heat and add the onions, celery, peppers, and garlic. Cook until they soften and start to color, 6 to 8 minutes. Add the sausage and chicken. Cook for about 10 minutes over medium heat, stirring often, until the meat and vegetables are browned. Stir in bay leaves, salt, cayenne, thyme, cloves, allspice, and rice. Cook for another 3 to 5 minutes, stirring until the rice grains begin to turn opaque and slightly browned. Pour in the chicken stock and bring to boil. Reduce the heat, cover, and leave to simmer gently for 15 minutes. Turn off the heat and let sit covered for another 10 to 15 minutes, until the rice is tender and has absorbed all the liquid. Ladle into bowls and garnish with chopped scallions.
Recipe courtesy of David Bowers, 'Bake It Like A Man'