In a large skillet, cook the ground beef over medium heat until fully browned. Drain excess fat if necessary.

Return the skillet to medium heat. Add ketchup, brown sugar, mustard, Worcestershire sauce, onion powder, garlic powder, salt, and pepper. Stir well to combine.

Cook the mixture for another 5 minutes, stirring occasionally. Meanwhile, toast the buns in a preheated oven at 400°F for 4-8 minutes with butter on cut sides.

Assemble the sloppy joes by spooning the meat mixture onto toasted buns. Add pickles if desired, and serve immediately.