In A Large Bowl, Combine The First Six Ingredients. Crumble Turkey Over The Mixture And Mix Just Until Combined. Shape Into Four 1/2-In.-Thick Patties. In A Large Skillet, Cook Patties In Oil Over Medium Heat For 5 Minutes On Each Side Or Until No Longer Pink. Serve On Buns With Lettuce, Mango Slices And Red Pepper Rings.