01 - Preheat the oven to 375°F.
02 - Boil egg noodles according to package directions. Drain and set aside.
03 - Heat a large skillet over medium heat. Cook ground beef, breaking it up, until browned throughout. Drain off excess fat.
04 - Add diced onion, minced garlic, and diced bell pepper to the beef. Sauté for 3 to 4 minutes until vegetables have softened.
05 - Stir in tomato sauce, diced tomatoes with juices, beef broth, dried oregano, dried basil, salt, and black pepper. Simmer gently for 5 minutes.
06 - Remove skillet from heat. Add cooked noodles and sour cream, stirring until thoroughly combined.
07 - Transfer mixture into a 9x13-inch baking dish, spreading evenly.
08 - Evenly sprinkle shredded cheddar cheese over the surface.
09 - Bake uncovered for 20 to 25 minutes, until bubbly and cheese is melted.
10 - If desired, garnish with chopped fresh parsley before serving.