iceberg lettuce

US /ˈaɪs.bɜːrɡ ˈlet.ɪs/
UK /ˈaɪs.bɜːrɡ ˈlet.ɪs/
"iceberg lettuce" picture
1.

a variety of lettuce with a large, crisp head of pale green leaves, commonly used in salads and sandwiches

:
She made a fresh salad with iceberg lettuce, tomatoes, and cucumbers.
For a crunchy texture, add some shredded iceberg lettuce to your tacos.