brown pork in olive oil, remove meat
saute mushrooms, remove
add broth, soy sauce, chili sauce and pepper, cover simmer 10 min.
return meat, mushrooms and add all other ingredients
simmer uncovered, 10 min.
combine corstarch and water and stir into soup, bring to a boil, and boil 2 minutes, add sesame oil and garnish with green onions