In a large bowl, combine the egg white, bread crumbs and Italian seasoning. Crumble pork over mixture and mix well. Shape into 3/4-in. balls. , Place meatballs on a greased rack in a foil-lined 15x10x1-in. baking pan. Bake at 350° until a thermometer reads 160°, 15-18 minutes. , Meanwhile, in a Dutch oven, saute the carrots, celery, parsnip and onion in oil until tender. Stir in the broth, herbes de Provence, pepper flakes and pepper. , Drain meatballs on paper towels. Bring soup to a boil; add meatballs. Reduce heat; simmer, uncovered, for 20 minutes. Add orzo; cook until pasta is tender, stirring occasionally, 8-10 minutes longer. Add spinach; cook and stir until spinach is wilted. Sprinkle with cheese and parsley.