KATHY'S FIESTA SCALLOPED POTATOES Makes 10 – 12 servings 4 pounds large Russet potatoes 2 teaspoons salt 1/2 teaspoon black pepper 2 tablespoons finely chopped pickled jalapeños 1 cup fresh corn kernels, or substitute frozen corn, defrosted 1/4 cup thinly sliced green onions 1/4 cup very tiny-diced...