Heat olive oil in a large skillet over medium heat. Add ground beef and cook until browned. Break the meat into small pieces using a wooden spoon. Drain extra fat if needed.

Add chopped onion and bell pepper to the skillet. Stir and cook for about five minutes. The vegetables should become soft and fragrant. Add minced garlic and cook one minute.

Pour tomato sauce into the pan. Add ketchup, tomato paste, Worcestershire sauce, and mustard. Sprinkle brown sugar, paprika, salt and black pepper. Stir everything together well.

Reduce heat to low. Let the mixture simmer gently for about 10 to 15 minutes. Stir occasionally to prevent sticking. The sauce will thicken and become rich.

While the meat cooks, lightly toast hamburger buns in a pan or toaster. Toasting gives the bread better texture and prevents it from becoming soggy.

Spoon the hot meat mixture onto the bottom half of each bun. Add the top bun. Sprinkle chopped parsley if you like extra color.

Serve the sloppy joes immediately while warm. The sauce should be thick, juicy, and full of flavor. This Ina Garten Sloppy Joes Recipe tastes best when fresh.