There are times when it is appropriate to cut corners when eating. We felt Mont Saint-Michel was one of those opportunities. A real tourist trap, even small packages of cookies with the island printed on the packaging ran over 7 euros in gift shops.
Because we had already done research before we arrived in France, we knew of appropriate dining opportunities, but also knew that photographs come first. We did stop in one eatery that had take-out, but no vegetarian options. The four of us elected to spend the time snacking instead. We finished the pasteries from Dinan, and shared a container of Paprika Pringles that are much like barbeque-style chips, but are less sweet. Paprika Pringles are not available in America. We also shared the leftover chocolate from Chartre. There were some nuts we had packed for the flight, peanuts given to us by flight attendants, and perhaps a dried peach or raisins. We also had the tangerines we purchased at the market in Dinan. Anyway, although it was a hassle carrying all the food around, it was the best option for us on the highly touristy and ridiculously priced area around the abbey. I would do it again, but likely would be more prepared, too. Picnicing is a wise way to use up all the food purchased throughout the trip.