Romaine lettuce has a long, sturdy head of leaves that are typically green in color, with a slightly bitter taste and crisp texture. The outer leaves are darker and more bitter than the inner leaves, which are lighter in color and sweeter in taste.

Romaine lettuce is a nutritious vegetable that is low in calories and high in vitamins A, C, and K, as well as folate and fiber. It is also a good source of antioxidants, which can help to protect the body against damage from harmful free radicals.

When selecting romaine lettuce, look for heads that are crisp and firm, with no signs of wilting or yellowing. To prepare romaine lettuce, remove any damaged or wilted leaves and cut off the bottom of the head. Wash the leaves thoroughly in cold water and then dry them before using.

Romaine lettuce is a versatile vegetable that can be used in a variety of dishes, from salads and sandwiches to wraps and tacos. It is also commonly used as a base for Caesar salad, which includes a dressing made from garlic, anchovies, Parmesan cheese, and lemon juice.