01 - Set the oven to 375°F and allow it to fully preheat.
02 - Boil egg noodles in a large saucepan following package directions. Drain thoroughly and set aside.
03 - In a large skillet over medium heat, cook ground beef until evenly browned. Drain off excess fat.
04 - Add diced onion, minced garlic, and diced bell pepper to the skillet. Sauté for 3 to 4 minutes until vegetables are soft.
05 - Incorporate tomato sauce, diced tomatoes with juices, beef broth, dried oregano, dried basil, salt, and black pepper. Simmer for 5 minutes.
06 - Remove skillet from heat. Add cooked egg noodles and sour cream, then gently fold to combine all ingredients.
07 - Transfer the mixture to a 9x13-inch baking dish. Distribute shredded cheddar cheese evenly over the top.
08 - Bake uncovered for 20 to 25 minutes, or until the dish is bubbling and cheese is melted.
09 - Garnish with chopped fresh parsley before serving if desired.