Preheat your oven to 350°F (175°C). Grease a 9x13-inch baking dish with olive oil.
Cook the egg noodles according to package instructions until al dente. Drain and set aside.
In a large mixing bowl, combine the drained tuna, cream of mushroom soup, frozen peas, shredded cheddar cheese, milk, garlic powder, onion powder, and black pepper. Mix until well combined.
Add the cooked egg noodles to the mixture and stir gently until the noodles are evenly coated.
Pour the mixture into the prepared baking dish, spreading it out evenly.
If using, sprinkle the crushed potato chips evenly over the top for added crunch.
Bake in the preheated oven for 25-30 minutes, or until the casserole is hot and bubbly.
Remove from the oven and let it cool for 5 minutes before serving.