Picky toddler eating re nutrition for littles?

My 2 year old eats things but doesn’t eat vegetables unless I’m blending them in smoothies. She also loves processed snacks so that is most of what goes in her lunchbox. I keep getting IG ads for an account called Nutrition for Littles which has no actual tips for picky eaters but just a lot of posts asking folks to comment for a guide that you have to pay for. Anyone ever take the course and can speak to its efficacy?