Mushroom and cheese strudel is a savory pastry made with phyllo dough. It is filled with a mixture of sautéed mushrooms, onions, garlic, and a blend of cheeses, such as Gruyere or Swiss cheese. The phyllo dough is layered with the mushroom and cheese filling and then rolled into a log shape. The strudel is baked until golden and crispy, and the cheese is melted and gooey. Mushroom and cheese strudel is a delicious and flavorful dish that can be served as an appetizer or a main course.