I worked in long term care for years. Don't be afraid to put regular items in the blender or food processor. One of the largest issues is getting the taste. I know you will think it looks too awful or you just can't bring yourself to do it but trust me, if it tastes like the real thing they will eat it. One of my personal favorites is cherry pie that has been blended. It about killed me to put a beautifully baked pie in the blender/foodprocessor... but it really tastes very good. If you need to add liquid , use something in the ingredients to help soften the item... tomatoe juice for pasta items, fruit juice for fruit based items, gravy for meats... you get the idea. Some items just need to be soaked ... cookies soak in milk till they soften, same for cake.