Combine the first five ingredients in a small bowl to make the seasoning mix. Sprinkle the chicken pieces evenly with 1 tablespoon plus 2 teaspoons of the seasoning mix and rub it in well.
Heat the oil in a heavy 5-quart pot over high heat just until the oil begins to smoke, about 4 minutes. Lightly brown the seasoned chicken pieces, in batches if necessary, about 2 minutes per side. Remove the chicken pieces and add the onions and plums, peaches or nectarines. Cover and cook, stirring occasionally, for 10 minutes, then add the remaining seasoning mix. Cover and cook for 4 minutes, then add the bell peppers and return the chicken to the pot. Cover and cook, stirring occasionally, for 10 minutes. Add the stock and honey, bring to a boil, reduce the heat to low, and simmer until the chicken is done, about 15 minutes. Serve with brown rice.