Flavorful One-Dish Tuna and Onion Puff Pastry Pie Meal

Questions
Can I Use Fresh Tuna Instead of Canned Tuna?
Yes, cooked fresh tuna can be used, although canned tuna is traditional for this type of quick savory pie because it provides convenience and a strong savory flavor.

Can I Replace Provolone Cheese?
Yes, mozzarella, scamorza, fontina, or another melting cheese can be used depending on the flavor and texture you prefer.

Can I Add Other Vegetables?
Yes, bell peppers, zucchini, spinach, or mushrooms can be added to the filling, but make sure vegetables are cooked and drained well to