Preheat your oven to 350°F. Lightly grease a 9x13-inch baking dish. Set it aside while you wrangle the noodles.
Cook the egg noodles according to the package instructions. Don’t overcook them; you want them slightly firm since they’ll bake more.
In a large bowl, stir together the cream of chicken soup, sour cream, mayo, cheddar, parmesan, garlic powder, onion powder, salt, and pepper. Mix until it’s creamy and a little ridiculous in the best way.
Fold in the cooked noodles, shredded chicken, and peas (if you’re using them). Pour that mixture into your prepared baking dish and spread it evenly.
Sprinkle the crushed crackers or breadcrumbs across the top. You’re looking for crunch here.
Bake uncovered for 25–30 minutes or until it’s bubbling around the edges and the topping is golden brown.
Let it cool for 5 minutes before serving. This gives it time to set and saves your tongue from getting scorched.