Preheat the oven to 350°F/180°C.
Heat a skillet over medium high heat, and cook the beef with onion, bell pepper, and garlic. Crumble the beef as you cook it, and cook until cooked through (6-7 minutes). Drain fat.
Add diced tomatoes, ketchup, brown sugar, mustard, Worcestershire sauce, and corn. Cook together for 4-5 minutes. Season with salt and pepper, taste the sauce and adjust seasonings to your preference.
Cook pasta in salted water according to package instructions, drain.
In a 9x13 baking dish, combine the cooked pasta with the meat sauce, and half of the cheese.
Top with the remaining cheese, and bake in the preheated oven until heated through and the cheese is melted. About 20 minutes. Garnish with parsley and serve.