An easy way to add some vitamins and fiber, buy a bag of frozen broccoli cuts or other cut veggies and throw some in the boiling water when your pasta is almost done. When they froze it they cooked it a little, so you’re really just heating it up while your pasta finishes cooking. Use a rubber band or something to close the bag if you’re only using part of it. You can do this with frozen peas, cauliflower, green beans, or other veggies, but not soybeans/edamame! They have to be cooked separately to be sure they’re fully cooked, or they can make you sick.
Unlike canned, frozen vegetables retain the nutrients of fresh. And you’re not opening the drawer to find they’ve gone moldy.