Sprinkle Pork With Pepper And Salt. In A Large Skillet, Saute Pork In Oil Until Juices Run Clear. Add Red Peppers; Cook And Stir Until Heated Through. Remove From The Heat. In A Large Bowl, Combine The Mayonnaise, Milk And Garlic. Spoon Pork Mixture Into Lettuce-Lined Pita Halves. Drizzle With Dressing.