Home-cooked meals for dogs and cats can be prepared once a week, making the preparation process much easier and more manageable. You will need to multiply the prescribed quantities by 7 and cook the ingredients. Once cooked and mixed evenly, they should be divided into 7 bags and stored in the freezer. Meat, vegetables and carbohydrates can be frozen, while oils, fats and vitamin and mineral supplements should be added before serving the food, which should be heated and left to cool.