Hi Erin,
No I don't have a kid but I was the kid.
At 2 I had my 1st surgery and colostomy. I weighed in at 14lbs pre-op.
My mom was an RN and my dad a genius... They put everything into a blender for me (I couldn't eat solids for over 2yrs)...
My mom made these milkshakes with whole raw eggs (yes, I know...nowadays people say not to eat them but there was not much availible in protein powders in those days. Now you can use a whey powder or soya), honey, orange juice or other fresh juices or almond or soya milk, liquid vitamins, bananas and/or berries.
Add ice and vanilla extract or coco powder and put it all into a blender.
It worked quite well for me and I mananged to put on a bit of weight inspite of the colostomy.
They did the same thing with homemade mashed potatoes mixing in a raw egg (it cooks in the hot potatoes), cream, goat or other cheese and various overcooked veggies (broccoli, carrots...)...they have long since become my go-to comfort foods whenever I am sick.
You can adapt these to her dietary limits and restrictions changing out cream for yoghurt or chopped chicken for cheese.
I make some very rich soups too. I use beef, veal or lamb bones and lots of herbs and veggies (parsley, cilantro, onions or shallots, celery, carrots, courgettes, ripe tomatoes, a potato...)
I brown the bones with a bit of meat still attached to them in a drop of oil and then cover with boiling water and add all of the veggies & herbs. She is probably too young for too many spices. I let cook for about an hour, remove the bones and take off the meat then blend it all with an immersion blender. Add salt etc to taste.
It is so tasty, a bit thick and comforting and can be eaten warm or hot...some people add a spoonful of cream to it before serving to add a bit of fat but I prefer, for a child to add some baby pasta or rice to give it more texture if needed. (I only do that if I don't blend it but keep the sauce liquidy...the baby pasta or rice make it nice and filling.
I have tons of recipes if you want to PM me...Most do not take long to make, can be kept a long time or frozen into portion sized cubes (in an ice cube tray and then I put them into ziplocks in the freezer).
I hope that this helps.
By the way...at over 50 I have absolutely no problem gaining weight now! I am still a poucher, I have a k pouch now (internal abdominal continent ileostomy) and am doing just fine.
Sharon