2 1/2 year old that is extremely picky eater..almost OCD about it?

My son will be 3 in 2 months and is terribly picky. ever since we moved to solid foods all i can get him to eat is chicken nuggets, pasta, and fruit. i know that does not sound too bad except for the fact that now if there is one bite taken out of the chicken nugget, its now broken and he cant eat anymore of it. If the pasta is broken (like his toy story mac.n.cheese) he refuses to touch it. he literally inspects every item of food that he puts in his mouth looking for imperfections. I have tried explaining to him that it does not matter but he doesn't care..stressed out mom..pleaseee any advice or tips would be greatly appreciated!