Preheat the Oven: Preheat your oven to 350°F (180°C) and line a baking sheet with foil or parchment paper.

Prepare the Garlic Bread: Slice the ciabatta loaf in half lengthwise. Spread each half with the softened butter and sprinkle with garlic powder, salt, and pepper. Set aside.

Cook the Ground Beef: In a large skillet, heat the olive oil over medium-high heat. Add the ground beef and cook until it’s no longer pink, breaking it up with a wooden spoon. Drain any excess fat.

Add the Aromatics: Add the diced onion to the skillet and cook until softened, about 3-4 minutes. Add the minced garlic and cook for another 30 seconds.

Make the Sauce: Stir in the ketchup, water, brown sugar, mustard, Worcestershire sauce, salt, and pepper. Bring to a simmer and cook for about 10 minutes, until the sauce has thickened.

Assemble the Garlic Bread: Spread the sloppy joe mixture evenly over the prepared garlic bread halves. Top with shredded mozzarella and cheddar cheese.

Bake: Place the garlic bread on the prepared baking sheet and bake in the preheated oven for 10-15 minutes, or until the cheese is melted and bubbly.

Serve: Remove from the oven, slice into pieces, and serve hot. Garnish with fresh parsley if desired.