11. In a heavy, nonstick skillet, brown the pork over high heat until well done.
2. Reduce heat to medium and add garlic, ginger, and soy sauce. Stir for a few minutes then add scallions. Remove from heat and add hoisin sauce and pine nuts; stir to mix well.
3. Fold in the watermelon. Divide mixture among lettuce leaves then wrap and serve immediately