Place bread crumbs in a large resealable plastic bag. Add chicken, seal bag and shake to coat chicken with breadcrumbs.
Heat oil in a large nonstick frypan over medium heat. Add chicken. Cook 3 minutes on each side or until browned. Add wine, thyme, salt and mushrooms to the chicken. Cover and reduce heat. Simmer for 15 minutes or until chicken is done. Remove chicken and mushrooms with slotted spoon and place on serving plate.
Add lemon juice and mustard to frypan and stir well. Heat through. Serve sauce with chicken.