1. Preheat oven to 350.
2. Cook pasta according to pasta directions just until done - you don't want it mushy, because it will absorb a little of the cheesy liquid in the oven.
3. Combine soup, evaporated milk, butter, salt, and pepper in a large microwaveable bowl. Cover with plastic wrap, leaving a small vent, and cook for 6-7 minutes until the butter is melted and the mixture is warm-to-hot throughout. (If making a half batch, 4 minutes in the microwave should do it).
4. In a large baking dish (minimum 9x13, smaller if halving the recipe), spread 1/3 of the cooked noodles. Top with 1/3 of the sauce. Sprinkle with 1/3 of the cheddar.
5. Repeat layers twice, ending with the cheese.
6. Bake for 40-45 minutes.
7. When it comes out of the oven, sprinkle with a little dried parsley if desired. This gives it visual interest, and you can also pretend it's healthier.
8. Let stand for 5 minutes before serving.