In a saucepan, brown meat with garlic and onion. Add water chestnuts, bean sprouts, salt, pepper, and patis or soy sauce; cook for 2 minutes.
Drain and cool thoroughly. Combine flour and water to make a paste.
To make lumpia, place 2 tablespoons filling on a wrapper. Fold nearest edge of wrapper over filling; fold left and right sides toward center. Roll tightly toward open edge. Seal with paste.
Heat oil to 375 F. Fry lumpia until golden brown; drain. Serve with Lumpia Dipping Sauce.
Makes 30 lumpia.