18.5 MONTHS- VEGIES?

Nevaeh has turned into a picky eater and as you know from the previous posts, Nevaeh is getting taller, but not gaining weight.  To entice her, Mommy tried V-8 juice since she is such a good juice drinker!  Well lets just say, it didn't work!  Mommy put the V-8 juice in her sippy cup and gave it to Nevaeh.  She started drinking, then stopped in mid stream and stared at her sippy cup.  She said "NO JUICE" and gave the cup to Mommy and said "More, More, More please. " Mommy pretended to put different juice in the cup and handed it back to Nevaeh, but she did the same thing by stopping her drink in mid stream and cried NO! She then put her hands to her face and cried real tears.  Daddy asked her if she wanted water.  The tears stopped instantly and Nevaeh repeat "Water, water, water" until Daddy got it for her.  She then said "Thank you" after she taste tested it!

Any thoughts on how to get her to eat or drink vegetables?  What works for all of you?