To my mind, the key foods which are healthy, cheap, and easy to prepare are whole milk, cheese, yogurt, and nuts. Last time I checked, they all came out much ch

To my mind, the key foods which are healthy, cheap, and easy to prepare are whole milk, cheese, yogurt, and nuts. Last time I checked, they all came out much cheaper per calorie than Soylent. Not exactly what you asked about, but, if I read you right, they accomplish what you're going for.