@loreejo - I know what you mean, I feel the same way. It's one thing to know something in your head and believe it to be true, and another to change ingrained habits & culture! I still read nutritional labels, and I still think in terms of "this food is high in so and so" based on the ingredients or what not.
My daughter (currently 23 mo) is very VERY picky and will consistently only eat cheese, yogourt, bread, and some fruits, and I find myself fussing over her nutrient intake in the long run (she's been on this "diet" for, oh, about a year now :) ). However, when you look at her, she's growing well, gaining weight, outgrowing her clothes, LOTS of energy, not lethargic, no dark circles under the eye... she's obviously fine! It's so hard to escape the mindset we grew up and still live in. We don't force feed her, and we don't say TO her "you're missing out, please please eat!" so hopefully we will help in not transferring some of our society's anxiety to her...
One thing we DO do though, is sometimes "mix" thing... like flaxseed in her yogourt, grounded chicken in her prunes, sweet potato muffins, French toast which has eggs on them... We don't "lie" to her and tell her "No it's just yogourt", but of course she doesn't really ask either being only 2 :) If she did, we'd tell her the truth (and cross our fingers).