[cadandcookies]

2220, my old team, has done a store bought breakfast before, especially back when we had 70-80 people traveling with us. We would buy at home, then bring it with us-- fruit, bagels, spreads, yogurt, and individual bottles of orange juice (we only bought the stuff that HAD to be refrigerated on-site). We'd have the "breakfast room" (one of the mentor rooms, which stored all this food) open an hour or two before we planned on leaving, and students were free to come in whenever during that time and bring it back to eat in their rooms.

This system has worked well for the last 7-8 years for the team, and I'd definitely recommend it.

Edit: I'll leave this here, but my apologies to the OP-- this advice isn't likely to be applicable to your situation.