In A 1 Quart Microwavable Casserole, Combine Onion, Oil And Garlic. Micro- Wave On High For 1 Minute. Stir In Tomatoes And Basil. Cover With Waxed Paper And Microwave For 10 Minutes On High. Stir Every Two Minutes. Transfer 3/4 Cups Of Tomato Mixture To A Medium Bowl. Add Zita, Sausage, Ricotta Cheese And Parmesan Cheese. Mix Well. Spray 1 Quart Microwavable Casserole With Cooking Spray; Spread Zita Mixture Evenly In Casserole. Spread With Remaining Tomato, Then Sprinkle With Mozzarella Cheese. Microwave On High For 5 Minutes. Each Serving Provides: 2 1/2 Protein Exchanges, 1 1/2 Bread Exchanges