Combine the seasoning mix ingredients in a small bowl. Sprinkle the diced chicken with 1 tablespoon of the seasoning mix, and sprinkle the shrimp with another 1 tablespoon of the seasoning mix. Preheat a heavy 5-quart pot over high heat to 350°, about 4 minutes. Add 3 cups of the mustard greens, 2 cups of the onions, all of the bell peppers and the celery, 1 cup of the okra, and the bay leaves. Cook, stirring occasionally to check for sticking, about 8 minutes. Add the apple juice and remaining seasoning mix, stir, and cook until most of the liquid is absorbed, about 6 to 8 minutes. Add the seasoned chicken, cover the pot, and cook 2 minutes. Add the browned flour and stir until it is completely absorbed and a paste forms. Cover and cook 1 minute. Add both the stocks, stir well, cover, and bring to a boil, and cook 3 minutes. Add the collard greens, the remaining mustard greens, onions, and okra, and mix thoroughly. Cover the pot and bring to a boil, about 5 minutes. Add the seasoned shrimp, stir, bring to a boil, and cook until shrimp turn pink and plump, about 3 to 4 minutes.

Serve over rice.

chicken sausage for the chicken.