Before you buy lettuce, consider what type of lettuce you want. There are many different varieties of lettuce, each with its own unique flavor and texture. Some of the most popular varieties include iceberg, romaine, butterhead, and arugula.
Once you’ve chosen a type of lettuce, you need to decide how much you need. A good rule of thumb is to buy about one head of lettuce per person. If you’re not sure how much lettuce you’ll need, it’s always better to buy too much than too little.