Gateway Roll

A "gateway roll" is not a widely recognized or standard menu item in restaurants across the USA. It's possible that you have come across this term in a specific regional context or at a particular restaurant. However, I can provide general information about sushi rolls, which are common in many American restaurants, as they might help you understand the concept.

Sushi is a traditional Japanese dish that has become popular worldwide. Sushi rolls are a common type of sushi, consisting of vinegared rice and various ingredients wrapped in nori (seaweed) sheets. There are many different types of sushi rolls with a wide variety of ingredients, such as raw fish (like tuna, salmon, or shrimp), vegetables (like cucumber, avocado, or carrots), and other elements like crab meat or cream cheese.

Considering the term "gateway roll," it might refer to a type of sushi roll that is beginner-friendly or appeals to those new to sushi. A possible candidate for such a roll could be a California roll, which typically contains crab meat, avocado, and cucumber. Its ingredients are generally familiar and appealing to those who haven't tried sushi before.

If you could provide more context or specify the region where you found the term "gateway roll," I would be able to give you a more accurate and helpful answer.