Some ideas for including people in cooking:
www.symbolworld.org/eLive/index.htm - Simple pictorial recipes.
http://teachinglearnerswithmultipleneeds.blogspot.com/2009/07/visual-recipes.html - More pictorial recipes.
www.sclera.be/index.php?page=pictos&sort=cat&cat=14 - Kitchen Symbols.
usa.stockfood.com/ - Food photos.
Talking Tins: Record a spoken message, e.g. "Coffee Jar", then attach to it. Press a button to make it talk. Adapt for accessibility switches here.
Switch Activated Pouring Cup: Great way to pour liquids into a mixing bowl, or to pour out drinks and smoothies.
Click-on: For switch control of basic twist timer microwaves, can openers, food-mixers and more.
Mug Stirrer: Battery Operated Auto-Stir Coffee Mug. Cup that can stir it's own contents on the press of a button.
Flour Sifter: Sift flour on the press of a button.
Food Hygiene: "Teaching Students with Learning Disabilities" blog links.