ingredients   1/2 cup plus 2 tablespoons (packed) grated parmesan cheese (about 2 ounces)  1/4 cup plus 2 tablespoons mayonnaise  1/4 cup plus 2 tablespoons sour cream  1/2 teaspoon ground black pepper  1/2 teaspoon onion salt  1/2 teaspoon garlic powder  pinch of salt  2 14-ounce can artichoke hearts packed in water, well drained, chopped into 1/4-inch pieces1/4 teaspoon paprika  1 cup italian cheese blend  French-bread baguette slices, toasted     
