I don't have the issues you have with food preparation and I can prepare a meal in very little time at all, but I've bought myself a soup maker. The reason for this is that my daughter doesn't like 'bits' in her soup and I hated having to wait until it cooled, before transferring it to a food processor, to liquidize it. The soup maker does everything for you. You only have to add the raw ingredients and switch it on. I add fresh veg and chop it myself, but you could use pre-chopped fresh or frozen veg instead. The only thing it won't cook is meat, but you can cook it separately and add it at the end, if you want to.
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"We act as though comfort and luxury were the chief requirements of life, when all we need to make us really happy is something to be enthusiatic about." Charles Kingsley