煙肉 is bacon, 生菜 is lettuce, 番茄 is tomato, and 三文治 is a loanword for sandwich. So 煙肉生菜番茄三文治 is bacon lettuce tomato sandwich.
About This Dish
A bacon, lettuce, and tomato sandwich.
Personal Note
For a sandwich with a short English name, BLT has a really long Chinese name, so in Hong Kong I would order this in the company cafeteria when I really wanted to practice my pronunciation..