In A Skillet, Brown The Turkey; Drain. Add Mushrooms, Onion And Garlic; Cook Until Tender. Stir In Tomato Sauce, Fennel Seed And Oregano. Cover And Simmer For 10-15 Minutes Or Until Heated Through. Spread 1 Cup Of Meat Mixture On Each Pita; Sprinkle With Cheese. Serve Immediately.