01 - Preheat oven to 375°F.
02 - Cook egg noodles in a large saucepan according to package instructions. Drain and set aside.
03 - In a large skillet over medium heat, cook ground beef until no longer pink, breaking it into crumbles. Drain excess fat.
04 - Add diced onion, minced garlic, and bell pepper to the skillet. Sauté for 3 to 4 minutes until softened.
05 - Stir in tomato sauce, diced tomatoes with juices, beef broth, dried oregano, basil, salt, and black pepper. Bring to a simmer and cook for 5 minutes.
06 - Remove skillet from heat. Add cooked egg noodles and sour cream; mix until fully combined.
07 - Transfer mixture to a 9x13-inch baking dish, spreading evenly.
08 - Sprinkle shredded cheddar cheese evenly over the top. Bake uncovered for 20 to 25 minutes, until bubbly and the cheese is melted.
09 - Garnish with chopped parsley before serving, if desired.