Heat a medium size skillet on medium heat and add olive oil, onions and bell pepper. Sauté for about 4 minutes. Stir as the vegetables are cooking.
To the pan, add ground turkey, salt, pepper and onion powder. Continue to stir as the ingredients are cooking until the turkey is thoroughly cooked.
Then add Worcestershire sauce, ketchup, water, and hot sauce. Stir together.
Cover with a lid and simmer on low heat until the mixture thickens (about 8 minutes).
Just before serving, stir all ingredients. Serve on lightly toasted buns.