Creole Sloppy Joes

Name: Creole Sloppy Joes
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: American, Cajun And Creole, Southern
Ingredients: 2 pounds ground beef; 1 small onion, finely diced; 1 small green pepper, seeded and finely chopped; 1 teaspoon garlic powder; 1 tablespoon yellow mustard; 2 tablespoons Worcestershire sauce; 2 tablespoons apple cider vinegar; 2 tablespoons brown sugar; 1 (14-ounce) can petitie diced tomatoes; 2 cups ketchup; 1 tablespoon Tony Chachere's Original Creole Seasoning ((or more to taste)); Buns for serving