Frank Key's Cafe supplies

I live at home and find that I tend to eat a lot of processed food – I aim for high calories, protein and carbs as I am trying to gain weight, however the downside is they usually either have high sugar, fat or sodium.

I don’t do any cooking and don’t want to use a stove. What is the best appliance that can do practically everything? I’m probably dreaming but is there something electronic that can indicate how long something needs to be cooked? For example, say I’m cooking fish, and I want it to tell me how long it needs to be cooked.

If not, is there appliances that can allow me to do everything included, steaming, baking, grilling? I’ve read that portable ovens, usually convection are ideal. So for example say I wanted to make sesame seed crackers, a benchtop oven would be suitable?

Thanks
Jase