We have bought 4 used RVs. Three of them had never had their kitchen stove used. We use our stove virtually every day, primarily for breakfast. Our typical breakfast is one egg and one strip of bacon each.
Two of RV's came with built in microwaves. We typically use them for reheating leftovers or making oatmeal. The two smaller rigs, 16 foot trailers, came with small counter microwaves. We got rid of both microwaves finding them not space worthy since anything we could do in a microwave
we could do on the stove top.
As to meals beyond breakfast we're typically out exploring during the day. We either carry a lunch for the trail or eat out. WE go to Newfoundland every other year for two months. Their when scouting around it can be difficult to find any where to eat when off the beaten track.
Suppers are usually eaten at home however we always seek interesting local places to eat. This can happen at lunch or supper. If we have a big lunch, we eat lightly in the evening.
Needless to say this eating life style was a change for us and between us over our 20 years on the road we've lost over 120 lbs between us and still counting.