Preheat oven to 375 degrees F. Line baking sheet with foil or parchment paper. Whisk the egg into a small bowl until the yolk is combined with the egg white. Pour oil into a deep plate or baking dish.
Mix minced green onion, onion powder, garlic powder, and salt into softened cream cheese thoroughly. Lay out egg roll wrap flat and add about 1 ounce of cream cheese mixture across the bottom edge of the egg roll wrap as evenly as you can.
Dip your finger into the whisked egg and apply generously to the upper edge of the egg roll wrap. Start rolling from the bottom edge where the cream cheese is and roll up to the top, sealing it with the edge with egg. Add more egg to the edge to fully seal. Place the rolled egg roll into the oil and roll it until fully saturated on the outside.
Place on the baking sheet and bake for approximately 15 minutes, until golden brown. Serve with your favorite sweet and sour sauce.