Heat olive oil in large skillet over medium high heat until shimmering. Pat ground turkey dry and add to skillet in one piece. Let brown without moving or breaking up for about 5 minutes. Flip turkey and brown the other side for a few minutes and then start breaking up with a wooden spoon, until all meat is browned and crumbled.
Add onion and green pepper, continue cooking until softened, about 3 to 4 more minutes. Add garlic and cook and stir about 30 seconds.
Stir in chili sauce, apple cider vinegar, mustard, Worcestershire, chili powder, brown sugar and salt. Cover and simmer 20 minutes, stirring often.
Taste for salt and pepper. See note below if mixture seems too thick. Spoon on buns and serve. Enjoy with pickles, chips or whatever your heart desires!