Mini Bulgogi Burgers with Apple Slaw

300 grams beef, (use belly cut), thinly sliced

1/2 cup store-bought bulgogi marinade

1/4 cup store-bought kimchi

1 fuji apple, cored and sliced thinly

1/2 cup cabbage, shredded

4 tablespoons mayonnaise

1 tablespoon sugar

1/2 teaspoon lemon juice

1/2 teaspoon salt

1/2 teaspoon pepper

canola oil, for pan-frying

6 dinner rolls, toasted

6 lettuce, leaves