Complex sentence: The sausages are made from lamb, pork and beef, and are served in a bun with a choice of condiments; ketchup, sweet mustard, remoulade, crisp fried onion and raw onion.
Split into simpler sentences: The sausages are made from lamb, pork and beef. The they are served in a bun with a choice of condiments; ketchup, sweet mustard, remoulade, crisp fried onion and raw onion.