Chicken Penne Pasta Bake

I got this recipe from Kraft Family Food Magazine, and just changed it a little to make it my own.

1 pkg. whole wheat penne pasta
1 pkg. spinach leaves
1 lb. boneless skinless chicken breasts
1 tsp. dried basil leaves
1 jar spaghetti sauce (i used the bottom of a can that i had, and also a small can tom. sauce)
1 can diced tomatoes, drained
1 cup mozzarella cheese shredded (I had cheddar and it was yummy)
Grated Parmesan cheese

Heat oven to 375F. Cook pasta. Cook and stir chicken and basil in large nonstick skillet on medium-high heat. Dice chicken then add sauce and tomatoes; bring to boil. Simmer 3 minutes. (the original recipe adds 2 oz of cream cheese here, i'm sure it would be yummy, i didn't use it). Add spinach (chop if desired) and let it cook down. Mix drained pasta and chicken mixture. Pour half of pasta into baking dish, sprinkle cheese. Add remaining pasta, sprinkle cheese. Add Parm. cheese as desired. I actually topped with some feta cheese. Bake 20 min.