That depends on the type of lettuce and the type of tomato. For the calorie content of both lettuce and tomato, in relation to type and quantity, please see the page links, further down this page,...
There are: 10 calories in a cup of chopped iceberg lettuce 6 calories in a cup of shredded iceberg lettuce 8 calories in a cup of shredded cos lettuce 8 calories in a cup of shredded romaine lettuce...