Preheat oven to 425 degrees. Coat a baking pan with cooking spray. For Air-fryer, preheat to 375 degrees.
In a medium bowl, combine cabbage, broccoli slaw, snow peas, carrots, and scallions.
Heat oil in a large, nonstick pan over medium-high. Add ginger, garlic and cook for 30 seconds. Stir in cabbage mixture, 1½ tablespoons soy sauce, rice vinegar, and black pepper. Cook for about 5 minutes until soft-crisp. Chill in refrigerator for 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 ⅓ cup cabbage filling into the center of the wrapper. Fold lower corner of egg roll wrapper overfilling. Fold in corners and roll up jelly-roll fashion. Repeat steps with remaining wrappers and veggie filling.
To Bake in Oven: Lightly coat egg rolls with cooking spray and place seam side down on a baking sheet coated with cooking spray. Bake for 10 minutes. Turn over and bake 10 minutes more until golden brown on both sides.
To Bake in Air-Fryer: Spray with cooking spray, and place in the air fryer in a single layer. Cook until golden brown, 6–8 minutes total. Turn over halfway at 3-4 minutes.
To prepare sauce: In a blender add all sauce ingredients and blend until smooth. Taste and add more red pepper flakes, if desired. Serve sauce on the side with egg rolls. Use ½ tablespoon sauce to dip with each egg roll.
Serve at once. To reheat, preheat oven to 425 degrees. Place egg rolls on a baking sheet. Place in oven and heat until crisp. Or can be reheated in the air-fryer.