Pre-heat the oven to 425°F.
In a large baking dish, mix together the uncooked pasta, marinara sauce, water, meatballs and herbs.
Cover tightly with aluminum foil.
Place in the pre-heated oven and bake for 30 minutes.
Remove from oven and stir the casserole contents; sprinkle top with cheeses.
Return to the oven, uncovered; bake for another 10 minutes until cheese is melted and pasta is tender.