Cook beef in non-stick skillet over medium-high heat, breaking up with wooden spoon, until no longer pink, about 5 minutes; drain. Add onions, garlic, ginger root, carrots and water chestnuts; cook over medium heat until onions are softened, about 3 minutes.

Whisk together: hoisin sauce, soy sauce, 1/4 cup (50 mL) water, cornstarch and pepper in small bowl. Pour into pan with beef and cook, over medium heat, stirring until combined and slightly thickened. Remove from heat.

Place several wraps on work surface; brush edges with water. Place heaping 1 tsp (5 mL) reserved cooked beef mixture in centre of each. Fold wraps diagonally in half, pressing edges to seal. Place on waxed paper and cover tightly with plastic wrap. Cook right away, refrigerate or freeze.

To cook (from fresh or frozen), heat lightly oiled large nonstick skillet, over medium-high heat. In batches, lightly brown pot stickers on both sides. Add 1/4 cup (50 mL) water; cover tightly and steam for 4 minutes. Transfer to baking sheet; keep warm in low oven.