I have cooked since I was little. I was a cook in three different restaurants and took Commercial Foods in high school.  Though these days it's popular for any professional cook to call themselves a chef, I say I was a cook because IMO being a true chef requires more culinary education than I had. 
    I am forever sneaking healthy ingredients into my food.  One thing that's easy to get away with are greens. You can add them to many foods and no one will complain.  Spaghetti sauce, ramen,  stews, soup, the list is almost endless.  What sort of greens? It really doesn't matter. Spinach, collards, turnip greens, mustard greens, broccoli rabe, etc..  Another very healthy item I like to add to a lot of recipes is crushed flax seed. You can add a bit to all of the above plus oatmeal and other hot cereals, or just about anything and no one will notice.  Any sort sauce I buy I almost always doctor with fresh ingredients.. onions, garlic, mushrooms, bell peppers, zucchini, etc..   
   Fresh ingredients and flavor, vitamins, and fiber to store bought sauces and other prepared foods.
Does anyone else doctor almost everything with fresh, healthy ingredients?

Turmeric is one of my favorite spices and can be added to many dishes. It's list of proven benefits for the body is impressive.  If I had to choose a few things to add to my dishes it would be Turmeric, Garlic and a healthy side of home fermented saurkraut or kimchi. Both of which are much tastier and better for you than what you can buy in the local supermarket.