Place normal Plain Sausages in the Rosemary infused Olive Oil fry for at least 10 minutes on the hob,prepare and chop onions,then chop Chorizo into small cube's - fry them off with the other sausages for a minute or two and then add the onions,onions will need too be fried off - between 5 to 10 minutes,so after about 10 minutes or 20 minutes place in the oven,but need too heat the Baked Beans through first.