Instructions:
For the Meatloaf:
1.Preheat the oven to 375°F (190°C).
2.In a bowl, combine ground beef, breadcrumbs, milk, chopped onion, chopped bell pepper, minced garlic, ketchup, Worcestershire sauce, dried oregano, salt, and black pepper.
3.Mix until well combined.
4.Transfer the mixture to a greased loaf pan, shaping it into a loaf.
5.Bake in the preheated oven for 45-50 minutes or until the meatloaf is cooked through.
For the Grilled Cheese:
1.Once the meatloaf is cooked, let it cool slightly, then slice into 1/2-inch thick slices.
2.Butter one side of each slice of bread.
3.On the non-buttered side, place a slice of cheddar cheese, a slice of meatloaf, and a slice of mozzarella cheese.
4.Top with another slice of bread, buttered side facing out.
5.Heat a skillet over medium heat and cook the sandwich on both sides until the bread is golden brown, and the cheese is melted.