I looked into an island type thing but we simply don't have the room, they are surprinsgly affordable tho,m I always do my back as I am too tall, SO it is too short for her. After loads of prep but then I have morphine and will do 10+ meals at a go. Usually base type stew/curry/chili/ragu/etc which can have a pasta/rice/potato whatever added if I want.
SO does prep on the table off a large bean bag or on her lap with a tray or on chair so put legs wherever she wants, not how I would do it but works for her. Also I did a load outside when it was sunny cos well its sunny fuck being inside and the picnic table has loads of room for cutting boards and trays. She also uses a hand chopper thing you press down on and it spins a blade for some stuff, or blender with attachment for thin slices/mandoline and then less chopping involved. Chopper works great for when she does like 10 pasties especially so bulk root veg.