I'll tell you it was a lot of fun testing our options last year (our rookie RV year). We won't do bacon inside again, but the oven tests with fresh cookies were a hit. And the crock-pot is a winner too.
I like grilling and we do a lot of foil-pouch creations for side dishes, so now we've moved away from much dinner "cooking" indoors. But breakfast almost always includes some indoor cooking for us.
I will warn you to do test runs of new toasters outside (or at home) so any fumes burn off and don't trigger your smoke detector. And if you have hook-ups, most TT's have outdoor outlets that make using an electric cooking appliance easy if you have a portable table.
This year we've had 2 "driveway camping" experiences at friends' properties. This meant we had an easy walk to the full amenities of the (unoccupied) homes. Out of 10 dinners, only 1 was prepared inside the home. The rest were out by our TT.