A cheese sandwich is a simple food item made by placing cheese between two slices of bread. The bread can be of various types, such as white, whole grain, or sourdough, while the cheese can range from cheddar to mozzarella. Cheese sandwiches can be served cold or grilled, often resulting in a warm, melted filling. This versatile dish is popular in many cultures and can be customized with additional ingredients like tomatoes, lettuce, or ham. Cheese sandwiches are commonly enjoyed as a quick meal or snack and are often paired with soup or salad for a more complete meal.