J.S.
L.,
My son is 21 months and picky too. I've found a few things he really likes and I make sure we have them each every week (boring for me - good for him). Spaghetti and tacos are big hits and also easy to hide vegi's in. I've been working to add vegi's to both recently. Last night I put beets (ground up) in his spaghetti sauce and he ate it! He is small (7th percent for his weight at 18 months) so I worry too. I've also started trying to switch his snack from crackers (which he always eats) to raisins or something healthier (he does like raisins so they are easy). It helped me to make a food diary for him to help pay attention to the things he actually ate quantity of, so I could be sure to include them in our regular menus.
Good luck to you!
Jessica