What is the cheapest and easiest way to make a sandwich?

This is kind of an abnormal question, but I found this website when I was looking for the cheapest zucchini bread recipe. I'm kind of under the radar here so any help with this answer here would be appreciated. I have noticed that this sub seems to be less judgemental than others so there's that. <br><br>I live on an island with limited access to stores. There's only two grocery stores and two restaurants, so the best way for me (a college student) to eat is to make my own food. I've been looking for healthier options to make my money last more- zucchini bread was one of them, because the island zucchini is cheaper than bread and I have a lot, but since there's two grocery stores and the best way to get groceries is to go to the one I don't like better because they have cheaper prices and better quality food but have all the products from one brand which are all processed foods. I buy a lot of bread from them and I've been looking for ways to make your own bread at home which is cheaper and healthier and because I came here for the zucchini bread, I don't want to have to buy yeast, water and salt because the store doesn't have those kind of products. <br><br>I believe I can make bread with flour, butter, and milk, but I'm not sure about that, so what you can do is, give me the recipe for the cheapest and easiest way to make a sandwich. <br><br>I've been looking for other ways to make bread and have found things like zucchini, pasta, bread, oats, corn, potato bread etc. But I don't know what's the easiest and cheapest way to make bread. All the recipes I've come across call for yeast because that's the most popular method. <br><br>So yeah, give me the recipe for the cheapest and easiest bread to make without yeast.