"Saya akan menyiapkan makanan."
Terjemahan:I am going to prepare food.
Not the same meaning. To prepare the food can be to prepare a single kind of food, to prepare for instance a dessert. But a dessert alone is not a meal. A meal is made of several dishes, that people generally eat always at the same time of the day. For instance, lunch is a meal usually at 12 AM.