Do you give them something else?
Yesterday I made tuna avocado pasta but DS just picked the cheese off it and left the rest. To be fair I had the same meal and it was pretty minging
I had a beef stew in the oven so tried him with a bit of that - again he just picked at it so I got him down from the highchair. He wasn't whining but I felt bad that he had only had a few strings of cheese for dinner so I got out a jar of baby food and he gulped down the lot!! So he was obviously hungry just didn't like my dinners 
So what do I do? I keep on giving him homemade stuff and will continue to do this but if he doesn't eat it should I give him something he likes? (Generally cheese on toast) Or if he doesn't eat do I give up?
He is a tall and skinny boy but not failing to thrive. I don't want him growing up on cheese on toast but I don't want to starve the poor lad either!