Cook the Ground Beef:
In a large skillet, heat a little oil over medium-high heat. Add the ground beef and cook until browned, breaking it up with a spoon as it cooks. Drain any excess fat if necessary.

Add the Vegetables:
Add the chopped onion and minced garlic to the pan with the beef. Cook for 3-4 minutes until the onion becomes soft and translucent.

Make the Sloppy Joe Sauce:
Add the ketchup, tomato sauce, Worcestershire sauce, brown sugar, mustard, paprika, onion powder, salt, and pepper to the skillet. Stir everything together and let the sauce simmer for about 5 minutes, until it thickens and the flavors meld together.

Add the Cheese:
Stir in the shredded cheddar cheese (or a mix of cheddar and mozzarella) into the meat mixture. Continue stirring until the cheese melts and becomes fully incorporated into the sloppy joe sauce, making it creamy and cheesy.

Assemble the Sloppy Joes:
Spoon the cheesy sloppy joe mixture onto the bottom halves of the toasted hamburger buns. Top with the other half of the bun.

Serve:
Serve the cheesy sloppy joes hot, garnished with pickles or fresh parsley if desired. Enjoy with a side of fries or a simple salad!