This Everything Smoked Salmon Tart is a delicious and elegant appetizer that is perfect for any occasion. The tart is made with a buttery and flaky pastry crust, filled with a creamy and tangy mixture of cream cheese, sour cream, and dill. It is then topped with slices of smoked salmon and sprinkled with a mixture of everything bagel seasoning, adding a savory and crunchy texture. Serve this tart at your next gathering and impress your guests with its beautiful presentation and irresistible flavors.