Your example of what will ruin your body is interesting. Peanut butter and white bread. But why is that going to ruin your body? Pure peanut butter is actually

Your example of what will ruin your body is interesting. Peanut butter and white bread. But why is that going to ruin your body? Pure peanut butter is actually quite healthy. It's got lots of good fats and other nutrients. Just don't buy it salted or sugary and leave out the white bread. Put it on vegetables, made into a sauce. The vegetables can be frozen and the sauce is made in the time it takes to microwave unfreeze and 'cook' the frozen veggies. Just to counter your "microwave for 2 minutes" example. Another great, filling and healthy choice: frozen peas, microwaved, put Mayo on top, stir. And those are just to replace the quick "white bread w/ peanut butter" choice. Want something nicer, e.g. an equivalent of an unhealthy Kraft Dinner? Make Baked Beans. These are great because you can make them from healthy dried beans (cheap) and any meat you can find. If you want (can afford) bacon, that's great but any cheap meat you find works. The beans go in the oven for 8 hours at low temp w/ the meat, water, salt, pepper, some sugar to taste - as in, less than bought baked beans! - and mustard. You can leave this in the oven over night if you don't have an 8 hour stretch where you're at home otherwise but put more water. You do want to have a large bean pot for doing that ideally but it's a lifetime purchase. These baked beans you can eat all by themselves. Keep in fridge, i.e. microwave portions when needed. Add cheese on top if you like or use as a side or as filling for a burrito/quesadilla. Those 'dishes' take less than 5 minutes to make. E.g. Quesadilla you just heat up a pan while doing something else (like turning on the TV and finding a series to watch or whatever) and slapping the ingredients down in the pan. Cook for a minute or so on each side. Burrito on the other hand is microwaveable.