01 -
Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish.
02 -
In a large skillet, brown the ground beef over medium heat, breaking it apart with a spoon as it cooks. Drain any excess fat and stir in the chopped onion. Cook for 2-3 minutes until the onion becomes soft and translucent.
03 -
In a large bowl, combine the cream of mushroom soup, cream of chicken soup, sour cream, garlic powder, salt, and black pepper. Mix well.
04 -
Add the cooked beef and onion mixture to the soup mixture. Stir in the cooked egg noodles and frozen peas (if using). Mix until everything is well combined.
05 -
Fold in 1 cup of shredded cheddar cheese until evenly distributed throughout the casserole.
06 -
Pour the casserole mixture into the prepared baking dish and spread it out evenly.
07 -
Sprinkle the top with the remaining 1/2 cup of shredded cheddar cheese and a layer of crushed potato chips or breadcrumbs.
08 -
Bake for 30-35 minutes, or until the casserole is bubbly and the top is golden brown.
09 -
Allow the casserole to cool for 5 minutes before serving.