Meanwhile, in small bowl, mix peanut butter spread, soy sauce, vinegar and sugar.
Spread peanut butter mixture on warm tortillas.
Top each with 1⁄4 cup cheese.
Spread stir-fry vegetables evenly on tortillas.
Sprinkle with remaining 1⁄2 cup cheese.
Bake 10 to 15 minutes or until cheese is melted.
Notes / Tips / Wine Advice:
Purchased peanut sauce, found in the ethnic-foods section of your grocery store, can be used in place of the peanut butter spread, soy sauce, vinegar and sugar. Use a scant 1 cup of purchased sauce.