Step 1: Prepare the Sloppy Joe Filling

1. Brown the Ground Beef: In a large skillet over medium heat, add the ground beef. Break it apart using a spatula and cook for about 6-7 minutes, or until the beef is browned. Drain any excess fat if necessary.
2. Cook the Vegetables: Add the diced onion, green bell pepper, and minced garlic to the skillet. Continue cooking for 3-5 minutes, or until the vegetables soften and release their flavors.
3. Simmer the Sauce: Stir in the tomato sauce, ketchup, brown sugar, Worcestershire sauce, and mustard. Mix everything well to combine, then allow the mixture to simmer for 10-15 minutes over low heat. The sauce will thicken and intensify in flavor. Taste and season with salt and pepper as desired.

Step 2: Prepare the Garlic Bread Layer

1. Slice the Garlic Bread: If using a pre-made loaf of garlic bread, slice it horizontally to create two halves. If you’re making homemade garlic bread, use a loaf of your choice and slice it in half the same way.
2. Add Garlic Butter: In a small bowl, combine the melted butter with garlic powder. Brush the mixture generously on both halves of the garlic bread.
3. Toast the Garlic Bread: Place the garlic bread halves on a baking sheet and toast them in a preheated oven at 350°F for 5-7 minutes, or until they are golden and crispy.

Step 3: Assemble the Bake

1. Preheat the Oven: Adjust the oven temperature to 375°F.
2. Layer the Dish: In a baking dish, lay the bottom half of the toasted garlic bread, crust side down. Spread the Sloppy Joe mixture evenly over the bread, ensuring the entire surface is covered.
3. Add Cheese: Sprinkle 1½ cups of shredded mozzarella cheese evenly over the Sloppy Joe filling. This creates a gooey, cheesy middle layer that complements the rich beef filling.
4. Top with Garlic Bread: Place the top half of the garlic bread on top of the cheese and meat mixture, crust side up. Make sure it is aligned properly for easy slicing after baking.

Step 4: Add Cheese Topping

1. Garlic Butter Finish: Brush the top of the garlic bread with the remaining melted butter for extra richness. Sprinkle it with garlic powder for an extra boost of garlic flavor.
2. Cheese Garnish: Finish by sprinkling the remaining ½ cup of mozzarella cheese on top of the garlic bread for a cheesy crust.

Step 5: Bake

1. Bake the Dish: Place the assembled Garlic Bread Cheesy Sloppy Joe Bake in the preheated oven. Bake for 10-15 minutes, or until the cheese on top is fully melted and golden brown. The bread will be crunchy, and the filling will be warm and bubbling.

Step 6: Serve

1. Garnish and Slice: Remove the dish from the oven and allow it to cool for a few minutes. If desired, sprinkle the top with freshly chopped parsley for a touch of color and freshness.
2. Serving Suggestions: Slice the bake into generous portions and serve immediately. For a balanced meal, consider serving it with a side salad or fresh tomato slices.