Caribbean Chicken without stew syrup

3/4 lb sweet potato , peeled, halved lengthwise & cut crosswise into 1/2-inch half-rounds 1 tablespoon olive oil 1/2 lb lean ground chicken 1 large nectarine[...]

4 pieces chicken (175 g per) 1 large red pepper, deseeded, cored, chopped 1 teaspoon curry powder 250 ml chicken stock salt and pepper 4 pineapple rings ,[...]

1 tablespoon cornstarch 6 ounces pineapple juice 1 tablespoon mustard 1/2 teaspoon thyme 1/2 teaspoon crushed red pepper flakes 3/4 lb cooked chicken, thin[...]