In a large nonstick skillet, cook sausage over medium heat until no longer pink; drain well. Stir in the coleslaw mix, water chestnuts, onions, soy sauce, garlic powder, ginger, salt and pepper. Saute until cabbage is crisp-tender.
Position an egg roll wrapper with one point toward you. Place about 1/4 cup sausage mixture in the center. Fold bottom corner over filling; fold sides toward center over filling. Roll toward the remaining point. Moisten top corner with beaten egg; press to seal. Repeat with remaining wrappers and filling.
In an electric skillet or deep-fat fryer, heat oil to 375°. Fry egg rolls, a few at a time, for 1-2 minutes on each side or until golden brown. Drain on paper towels. Serve with sweet-and-sour sauce. Yield: 14 egg rolls.