You're not alone! I'm right there with you, I've been trying all sorts. I recently discovered hiding the vegetables in foods to get them to eat it!
My two year old loves my new fruit and veg pancakes!
4 tablespoons flour
4 tbsp pureed veg
6 tbsp pureed fruit
1 tbsp honey/sugar
1 tsp baking powder
Milk for consistency
Coconut butter/ butter for frying
Mix all the ingredients together to make a thick but smooth batter. Cook pancakes the way you usually would. If you make a slightly thicker batter you can make waffles too.
Serve and enjoy. My daughter has gotten so much fruit and veg this way!