In small bowl, blend ricotta & flour. Place in center of small sprayed baking pan. Spread in 7 " circle, mounding edges. Bake about 20 minutes at 350. In small bowl, combine tomato paste, oregano, and Worcestershire sauce. Spoon over crust. Top with mushrooms & cheese. Bake about 10 minutes at 350. Each serving � bread, 1 vegetable, 2 protein. Formatted for MM by Joyce Burton, PDPP83A.