Combine celery and carrot in food processor. Pulse 10 times-or-until finely chopped.
Combine celery mixture and cabbage in a medium bowl.
Cover with plastic wrap and vent by poking several holes in the top. Microwave on high for 5 minutes and then drain.
Heat vegetable oil in a large nonstick skillet over medium-high heat. Add onion, ½ teaspoon ginger, and garlic; sauté 2 minutes.
Add turkey; cook 5 minutes.
Remove from heat; stir in cabbage mixture, 1 ½ tablespoons soy sauce, and pepper. Cover and chill 15 minutes.
Place 1 egg roll wrapper at a time onto work surface with 1 corner pointing toward you (wrapper
should look like a diamond). Spoon 3 tablespoons filling into center of wrapper.
Fold lower corner of egg roll wrapper over filling. Fold in trimmed corners.
Moisten top corner of wrapper with egg white; roll up jelly-roll fashion.
Lightly coat egg rolls with cooking spray, and place, seam side down, on a parchment paper lined baking sheet. Bake for 18 minutes or until golden brown.
Repeat procedure with remaining wrappers, filling, and egg white.
The Sauce
Combine ¾ cup soy sauce, vinegar, sesame oil, and 1 tablespoon ginger; serve with egg rolls.
