Combine dried garlic, dried onion, poppy seeds, sesame seeds and kosher salt in a small bowl, stirring to combine. Warm olive oil in a medium skillet over medium heat. Add the breadcrumbs and cook until golden and crunchy (5 to 6 minutes). Stir in Everything Bagel Spice to taste (I added around 1 1/4 teaspoons). You will have extra spice mix.
Add sour cream, cream cheese, mayo and lemon juice to a medium bowl, whisking until well-combined. Separate the egg yolks from egg whites. Place the yolks in bowl with the sour cream mixture, and the whites on a large plate. Add chives, smoked salmon, 1/2 teaspoon salt and 1/2 teaspoon pepper to the bowl with the yolks. Using a fork, mash and mix to combine. You don’t want any big chunks of yolk remaining. Season to taste with additional salt, pepper and lemon juice.
To serve, spoon or pipe the yolk mixture into the well of each egg white. Top each egg with a sprinkling of breadcrumbs. Finish with a sprinkling of minced chives.