Not only that, but I think we may have done only about $20-30/day for food.
This is a family of four and two small 6 &4 children
First we brought not only muffins, etc, but yogurt, pudding, bread, peanut butter, fruit roll ups, raisins, granola bars, etc. We also bought Lunchables for them for lunch. We also brought two 12 packs of soda/ice tea, and about 5 packs of juice boxes
The kids and us had a breakfast in the room, and we brought snacks, so around 10 am they had a snack., we packed Lunchables for them. WE would sit down somewhere to eat, and they the kids, would share a side item with there lunchables.
For dinner, we would hit the McDonalds, or just pick up stuff at the food court. (We loved the tabouli wraps!)
The food we brought came out of our grocery budget.