Veggie pouches

So, I am trying to find a way to get my son to eat more veggies. He used to eat broccoli no problem, and liked corn as well. What is a good brand of the fruit and veggie pouches that actually taste good? He used to get them when he was a year but some of them were not so tasty and he hated them around 2. He is now 3 and something needs to give. He is having such hard poops and they are irritating his little backside. He eats fruits just not veggies anymore no matter what we try.