Step 1

Preheat the oven to 375º. Bring a large pot of salted water to a boil over high heat. Add noodles and cook 2 minutes less than the package directions. Drain and rinse under cool water. Set aside.

Step 2

Stir together the tuna, cream of mushroom soup, sour cream, heavy cream, peas, bell pepper, celery, onion, 1 cup of the cheese, 2 tablespoons of parsley, and salt and pepper to taste in a large bowl until combined. Stir in the cooked noodles and spoon the mixture into a lightly greased 13-by-9-inch baking dish.

Step 3

Top the casserole with the remaining 1 cup of cheese, then the potato chips.

Step 4

Bake the casserole 25 to 30 minutes or until golden brown and bubbly around the edges. Sprinkle with additional parsley before serving.