Step 1

Preheat oven to 425 degrees F.

Step 2

Spray a 2-quart (about 8 or 9-inch square) baking dish with cooking spray. Add the uncooked ground beef to the dish, breaking it up into small pieces with your fingers.

Step 3

Place onion, garlic, uncooked pasta, grated cheese, marinara sauce, water, and Italian seasoning in the dish and stir to combine.

Step 4

Cover tightly with foil and bake for 35 minutes. Stir, add additional cheese if desired, and return to oven for about 15 more minutes, or until pasta is tender and beef is cooked through.