The first thing you want to do is get at least two farms. I don't care how you get them you have to stop losing food. Don't try and get any one. And don't do the love caravan. In fact don't do anything that could make you lose food at all. While you are trying to get the farm make sure to scavenge for food. Once you have gotten enough farms try to get a school house or a hospital. Still continue to try and look for farms. After you have a hospital and a school try to get a labatory.
Sorry, but you don't seem to understand the mechanics of the game at all.
On easy mode, food is the least of your concern. Almost nothing is to be concerned about, to be frank. It is what it should be: easy.
What you should do, and you should do it ASAP in any difficulty, is spot the nearby territories around so you can up your manpower. The more people in your town, the better you fare. When you have more people you can scout faster, gather food faster, expand faster, kill more zombies (which count for the total zombie count and thus keep you safe), etc.
Just make sure you never play too fast and eventually end up without food. That mean plan in advance. If you can see with your scouting that you can't gather enough food in the middle to long run to keep your population alive then of course focus on farms and the like. By that time you should have so many people in your town you will be able to turn the tide in only a few turns if you do things right.
If you didn't know: with skilled builders you can reduce the time of any construction to the minimum which is 2 days. What you need to do for that is gather more than 10 points worth of manpower at the same place. Use the items wisely to achieve that and maximize production.
Scouting is a waste of time. Attack territory with max manpower(100% success), it also reveal territory. If you see people - invite, otherwise - reclaim square. Pity, but scavenging items doesn't help. 10 for stat is a maximum with or without item.
