Grease a 13x 9 inch baking dish with cooking spray. Place uncooked pasta in the greased pan and pour over marinara sauce and water. Mix gently. Add fresh spinach and toss lightly.
In a large bowl, mix ground chicken, panko, pesto, salt and pepper until well combined. Roll mixture into 1-inch meatballs and place on top of pasta. Cover the baking dish with aluminum foil and bake for 30 minutes.
Remove the baking dish from oven and carefully stir pasta well, return to oven and cook until pasta is tender and sauce is thicken, another 5-8 minutes.
Remove dish from the oven and stir carefully. If the dish seems dry, add a little warm water and stir. Let cool for 10 minutes and sprinkle with cheese and basil.
