A gift from God is too good a thing to keep to oneself, so the scriptures recommend sharing prasada with others, be they friends or strangers. After welcoming his guests and offering them all the comforts at his disposal, he would feed them to their full satisfaction before taking his own meal. Even if you can't follow this practice, look for occasions to offer prasada to others, and you will appreciate prasada more yourself. Be clean Vedic culture places great emphasis on cleanliness, both internal and external. For internal cleanliness, we can cleanse the mind and heart of material contamination by chanting Vedic mantras, particularly the Hare Krishna mantra.
External cleanliness includes keeping a high standard of cleanliness when cooking and eating.
Naturally this includes the usual good habits of washing the hands before eating, and the hands and mouth after. Eat moderately Vitality and strength depend not on how much we eat, but on how much we are able to digest and absorb into our system. The stomach needs working space, so instead of filling it completely, fill it just halfway, by eating only half as much as you think you can, and leave a fourth of the space for liquids and the other fourth for air. You'll help your digestion and get more pleasure from eating. Moderate eating will also give satisfaction to your mind and harmony to your body.