Step 1: Prepare the Meat

1. Cook the Beef: Heat a large skillet over medium heat. Add the ground beef and cook, breaking it up with a spatula, until browned and fully cooked. Drain any excess fat.
2. Mix Ingredients: Stir in the tomato sauce, cream cheese, garlic powder, onion powder, salt, and pepper. Reduce the heat to low and cook, stirring frequently, until the cream cheese is melted and fully incorporated into the mixture.

Step 2: Assemble the Casserole

1. Combine Ingredients: In a large mixing bowl, add the cooked egg noodles, sour cream, and the beef mixture. Stir well to combine.
2. Layer the Dish: Lightly grease a 9×13-inch baking dish. Spread half of the noodle mixture evenly across the bottom of the dish. Sprinkle with half of the shredded cheddar cheese. Repeat with the remaining noodle mixture and top with the remaining cheese.

Step 3: Bake

1. Preheat Oven: Set your oven to 350°F (175°C).
2. Bake the Casserole: Cover the dish with aluminum foil and bake for 25 minutes.
3. Finish Baking: Remove the foil and bake uncovered for an additional 10-15 minutes, or until the cheese is golden and bubbly.

Step 4: Serve

1. Cool and Garnish: Let the casserole rest for 5-10 minutes after removing it from the oven. Garnish with freshly chopped parsley for a pop of color and fresh flavor.