Cooked hamburger, boiled chicken with a little rice,or ham are good for a picky chi. I also give them a tiny bit of salmon once in a while. The oil is great for their coats. Raw meat can give the dog parasites. You can also once in a while cook up an egg and add it to the dog food.
Gypsy is a very picky eater. I found she'll eat Cesaer porterhouse steak, filet mignon, or little champions. I've tried everything - including Wellness. She and Amber do the best with those. Plus they are formulated for small dogs. Gypsy is now 13 1/2 lbs, and Amber 12 1/2 lbs.
Hope that helps!