Step 1

Preheat oven to 425 degrees F. Spray a 9 x 13-inch baking dish (or two 8-inch square baking dishes) with cooking spray.

Step 2

In the prepared dish (or in a separate bowl), stir together dry (uncooked) pasta, marinara sauce, water, salt and basil (if using). Cover tightly with foil.

Step 3

Bake (covered) for 25 minutes.

Step 4

Remove dish from oven, take off cover, and give the pasta a stir. At this point it should be almost done, but still a bit firm ("al dente").

Step 5

Sprinkle the grated mozzarella cheese over the top of the casserole. Return the dish to the oven (uncovered) for an additional 5-10 minutes -- or just until the cheese is melted and the pasta is tender.

Step 6

Garnish with optional grated Parmesan cheese and fresh herbs, if desired.