Now BIGGER and BETTER! How does Udi's make classic pizza gluten free? They start with a thin and crispy crust, layered with a savory sauce made from vine-ripened tomatoes, extra-virgin olive oil, garlic, and spices. Next comes mozzarella, tomatoes, and basil to create a simple yet sensational palate pleaser. A great source of calcium and protein, you can feel good about this gourmet dinner favorite.