How to Get Picky Eaters More Nutrients Without the Fight

How do we help our children eat more nutrient dense foods? I think if you have a picky eater, whether you have a child or an elderly person or even a middle aged adult that hasn't figured out how to eat good stuff, but hiding like pureeing veggies, let's say they just like regular old spaghetti. Well, instead of just doing a tomato sauce saute and puree, squash, zucchini, broccoli, whatever kind of veggies and add that into the sauce because they're just going to see red sauce and throw that over some good organic pasta. You can even add some sort of protein into that too and things like that, adding it into protein smoothies so you can still have the berries and the honey and the sweetness of it. But add in Greek yogurt for added protein, add in some avocado for good healthy fats, some coconut milk. So there's a lot of different ways to hide the veggies and add in the protein.