Preheat oven to 400 F and spray bottom and sides of large 9x13 baking dish with cooking spray. Set aside.
Preheat large non-stick skillet and add ground turkey. Saute, stirring often and breaking into small pieces. Set aside. You can also omit it or use any other favorite cooked protein.
To the baking dish add pasta, marinara sauce, water and cooked ground turkey. Stir and level with spatula, then sprinkle with cheese. Cover with a smaller piece of parchment paper to avoid foil touching food, then tightly wrap a few sheets of foil criss cross. Steam shouldn't escape!
Bake for 30 minutes. Check for doneness - pasta in the center should be al dente. If pasta on the sides is a bit firm, that's fine.
Remove from the oven and let stand covered for 10-15 minutes. Don't skip! Now you can broil it if you wish.
Serve hot with favorite side salad and garlic bread.
Video
Notes
Store: Store leftovers in an airtight container in the fridge for up to 3 days.
Reheat: Reheat in a microwave or on the stove with a bit of water or broth until heated through.
Freeze: I do not love to freeze pasta because it changes texture but you can, if you wish. Freeze in an airtight container for up to 3 months.