Cooking is (obviously) an activity that is not enjoyed by everyone, but it's an enormous leap to call it "a waste of time". Imagine, if you will, that someone has invented a speedy way of deodorizing yourself without water and soap, as showering is as much a waste of time. Sounds great, until you realize that there is a reason for these rituals. It takes me away from code, writing, and working, and offers me a moment to clear my head. What does your morning shower take you away from? What does preparing your breakfast, a cup of coffee, or dinner take you away from?
Not everything needs to be optimized for efficiency. If you've ever been to France, you'll know that many people spend an hour or more at breakfast. It slows people down, and provides them a chance to think, contemplate, and relax. Sometimes, the very act of something being inefficient can be beneficial in its own right.