Prepare the seafood filling:In a large bowl, combine chopped shrimp, crab meat, fish sauce, ginger, garlic, soy sauce, sesame oil, and rice vinegar. Stir until the ingredients are evenly distributed.
Add vegetables:Stir in shredded cabbage, julienned carrots, and chopped green onions to the seafood mixture. Set aside.
Assemble the egg rolls:Place an egg roll wrapper on a clean surface. Spoon 2-3 tablespoons of the seafood filling into the center of the wrapper. Fold in the sides, then roll from the bottom up. Seal the edge with beaten egg.
Fry the egg rolls:Heat vegetable oil in a pan over medium-high heat (about 350°F). Fry the egg rolls in batches for 3-4 minutes, turning until golden brown and crispy. Drain on paper towels.
Serve:Serve immediately with sweet chili or soy sauce for dipping.