Smoked Sausage Jambalaya

1 pound pork andouille sausage, sliced crosswise 1/3 inch thick 1 tablespoon vegetable oil 2 green bell peppers, finely chopped 2 celery ribs, finely chopped[...]

2 tablespoons olive oil 1 1/2 lbs boneless skinless chicken thighs kosher salt & freshly ground black pepper 1 lb smoked sausage , sliced into circles 1 large[...]