Ranch dressing to dip things in - helps a lot. He will eat sweet veggies like snap peas and carrots plain. He loves salad which has always surprised me!
Our rule has always been that you have to eat the same number of bites of each food as your age. So when he was 4, he had to eat 4 bites. I wouldn't purposely serve him something he truly hated, but he always had to try the bites. And re-trying foods after a few months is good too. "Taste buds change."
Lost 135 lb in 2011-2012. Regained 40 in 2013-2014. Back in the saddle again...