Combine onion and olive oil in large, wide skillet with tight-fitting lid. Cook, stirring, over low heat until onion is tender, about 5 minutes. Stir in rice, dried tomatoes and rosemary. Cook and stir 1 minute over low heat. Add broth and salt. Bring to boil over high heat, stirring once. Cover and cook over low heat until liquid is absorbed, abotu 15 minutes. Uncover and stir in cheese. Let stand until lukewarm. Can be made ahead to this point and refridgerated for several days. Add egg and stir to blend. Using quarter cup measure, form rice mixture into small pancakes about 5 cm in diameter and 1 cm thick. To keep rice from sticking to hands, rinse hands frequesntly with cold water. Coat large, non-stick skillet or griddle with a thin film of olive-oil. Heat over medium heat. Add pancakes in batches and cook until golden brown on one side, about 5 minutes. Carefully turn pancakes, using wide spatula, and brown other side. (Keep warm in oven on lowest setting until all are done). Recommended side dishes: Escarole with Garlic, Roasted Peppers