For very short trips I sometimes forego cooked meals. France, moreover, offers many possibilities for nice cold food. A quiche, some slices of ham, a French bread and a salad, plus some cheese will see me through the evening, with a bottle of wine. On the other hand, for a longer trip I really like the delights of cooked meals, and a few cups of nice Italian coffee in the morning. A stove like the Caldera Cone could be an ultralight compromise. Replying to the wider theme of fast bikes for touring, yes it can be done, provided the wheels are not too fragile. However, in this vein I think an audax bike would be far preferable: mudguards, 32 mm tyres, and a slightly more relaxed geometry. I fact, I often wonder why many people ever buy full out modern roadbikes rather than audax bikes. Most of them do not ever compete at the levels where the slight difference in speed matters.
Willem