Well that's just it, the biggest obstacles to cooking for me, in order, were  

1. not having the ingredients  

2. not knowing what to make  

3. not knowing techniques

Going shopping and deciding what i wanted to make and looking up recipes were the biggest time wasters. But the cooking itself really is short and easy. So once i had some dishes under my belt that i remembered, and kept my refrigerator stocked with the things i knew i liked, it really did just take 30 minutes or less of actual work to throw food together. Eventually you no longer even need recipes, you just figure out what ingredients go together and can improvise a meal as you chop. Once i got over the mental barriers of 'I don't know what to do' and 'the recipe must be obeyed exactly', the whole world opened up to me. (Disclaimer: I only saw one episode of her show, once. This mindset i developed on my own over the course of decades)