two things i would suggest (but this is just me)
1st, personally i wouldnt be leaving any food for 1-2 weeks
eating fresh is the first step in eating clean
if you letting your veggies slowly lose their nutritional value like that, you might as well not bother
2nd, dont fukk with frozen food
frozen food is processed food
also, you gotta think about it, freezing food is a very violent way to try and preserve something
if you're going for preserved methods, try pickled and fermented (good for alkaline foods)
i live in the city, commute everyday, pass numerous supermarkets and have a convenience store on my block
i live off vegetable curries and soups and salads, slowly topping up my fridge/cupboard with what i need on a day to day basis
sometimes its as simple as picking up a tomato on my way home just to make the last piece of the puzzle on a meal i know otherwise i got all the ingredients for
(random one) but i've just started washing my fruit and vegetables properly. proper method is to soak em in water with half a cup of organic cider vinegar in there for about 10 mins. rinse and youre good to go. this draws pesticides, sprays and even wax off you veggies. it also helps keep them fresher for longer, especially the more delicate fruits, berries and that
hope that helps