Chicken Casserole With Broccoli with seasoning

2 ounces flour salt and pepper 8 chicken portions 1 teaspoon dried sage 4 ounces unsalted butter 8 slices streaky bacon , chopped 4 leeks , cut into 2in[...]

2 teaspoons olive oil 1 kg skinless chicken thigh , trimmed of fat and cut in half 1 large brown onion, finely sliced 2 stalks celery , chopped 2 teaspoons[...]