**1 lb ground beef**
– **1 small onion**, diced
– **1 small green bell pepper**, diced
– **2 cloves garlic**, minced
– **1/2 cup ketchup**
– **1/4 cup tomato paste**
– **1/4 cup brown sugar**
– **1 tablespoon Worcestershire sauce**
– **1 tablespoon yellow mustard**
– **Salt and pepper**, to taste
– **4 sub rolls or hoagie rolls**
– **1 cup shredded cheddar cheese**
– **1 cup shredded mozzarella cheese**
– **Fresh parsley**, chopped (for garnish)
Instructions:
1. **Prepare the Sloppy Joe Filling:**
– In a large skillet, cook the ground beef over medium heat until browned, breaking it apart as it cooks. Drain excess fat if necessary.
– Add the diced onion, bell pepper, and garlic to the skillet. Cook until the vegetables are softened, about 5 minutes.
– Stir in the ketchup, tomato paste, brown sugar, Worcestershire sauce, mustard, salt, and pepper. Bring the mixture to a simmer and cook for another 5-10 minutes until the sauce thickens and the flavors meld together.
2. **Assemble the Subs:**
– Preheat your oven to 375°F (190°C).
– Place the sub rolls on a baking sheet lined with parchment paper.
– Spoon the sloppy joe mixture evenly into each roll.
– Sprinkle shredded cheddar cheese and mozzarella cheese on top of the sloppy joe mixture.
3. **Bake the Subs:**
– Place the baking sheet in the preheated oven and bake for about 10 minutes, or until the cheese is melted and bubbly.
– Remove the subs from the oven and garnish with freshly chopped parsley.