DS is picky like that at lunch time only, for some reason! He always eats his veggies but getting something else into him at the middle of the day is tricky. A few things beyond KD that I've managed to get into him are...
1. Homemade mini pizza - I buy ww slim burger buns (they are a canadian brand called Presiden'ts Choice, Eat the Burger First) - I spread some tomato sauce on a half of one, sprinkle some cheese, slice a chicken meatball and put it on, add some thinly sliced mushrooms, green/red peppers, onion and more cheese. Bakes up in about 5 min in the toaster oven.
2. Homemade mini-meatpies - basically you make a batch of about 15-18 of them for dinner and freeze the rest for lunches - one does it for DS and it thaws in 2 min in the microwave - you cut the crusts off of ww bread, butter one side and press each slice in a muffin tin to make a cup. You mix 1 lb of extra lean ground beef or ground turkey/chicken with 1/4 cup finely diced onion, 1/2 cup shredded cheddar (I use 2% lower fat), 1/2 cup bread crumbs, 1 can of cream of mushroom soup (I use the healthier stuff - low fat and/or low sodium), and some salt and pepper. You put a good scoop inside each bread cup and bake for about 40 min at 350 or until the meat is cooked through.
3. chicken meatballs
4. garlic cheese toast - lightly toast a slice of ww bread in the toaster. Spread on margarine and a bit of a spinkle of garlic powder. Toast in toaster oven for a min or two, sprinkle on some cheese and toast a bit more.
5. quesidilla - cut a ww tortilla in quarters (I only use half a tortilla for DS right now). Spread each half with a little salsa, then on one quarter, sprinkle on some cheese and whatever else (often I will add some leftover finely diced chicken or ham, sprinkle a bit more cheese on top and top with another quarter. Heat in a non-stick pan (I don't add any oil) for a min or two each side, enough to melt the cheese. DS likes anything he can DIP so I give him a little cup of salsa mixed with sour cream to dip the pieces in.
HTH!