1. Heat oil in a large nonstick skillet over medium-high heat. Add turkey and next 3 ingredients; cook 10 minutes or until turkey is done and vegetables are tender, stirring until turkey crumbles.
2. Stir in tomato sauce and next 7 ingredients; simmer, uncovered, 10 minutes. Spoon turkey mixture evenly onto bottom halves of hamburger buns; top with remaining halves of buns.