Preheat your oven to 350°F (175°C).
Cook the egg noodles according to package instructions; drain and set aside.
In a large mixing bowl, combine the cream of mushroom soup and milk.
Stir in the garlic powder, onion powder, salt, and pepper.
Add the drained tuna, frozen peas, and cooked noodles to the bowl.
Mix everything until well combined.
Transfer the mixture into a greased baking dish.
Sprinkle shredded cheddar cheese evenly on top.
Optional: Add breadcrumbs for a crunchy topping.
Bake in the preheated oven for 25-30 minutes, or until bubbly and golden brown.