Baked Ziti with Spinach

dry whole wheat ziti (or penne) pasta

olive oil

garlic (finely chopped)

bag raw spinach

whole peeled tomatoes (like San Marzano or Cento) (crushed or pureed in blender or food processor. )

finely chopped basil leaves

sea salt (or Himalayan salt)

ground black pepper

crushed red pepper flakes ((optional))

part-skim Mozzarella cheese (divided use)

grated Parmesan cheese

part-skim ricotta cheese

Nonstick cooking spray