Or, how am I going to feed us?

I'm in a senior in high school and my dad, who is the cook, is moving to another state for a job opportunity this year. The four of us remaining are very active/tall and eat an enormous amount of food (9000-10000 cal/day), and I want to figure out the easiest way to keep up this level of nutrition with about $200 a week. So $50 each or like $2 per meal. Any favorites, suggestions, or other thoughts?

Thanks everyone :3