All depends on what comes out of your garden as well. if we eat vegetarian, it's only cost is seeds and the labour you put in. So for today's pasta dish the basil, peppers, aubergine, lemon grass and tomatoes were just picked. A packet of pasta and thats R20 for 4 people. With a bit more effort (being catching and slaughtering) we can have fish, duck, chicken or goat. Feed costs don't make them free though, but the cost still little.