We drycamp about 95% of the time with a dc fridge, microwave and mag induction burner just fine. No gennie, solar or installed propane necessary.
The alternator supplies the ah's while on the road.
Capturing enough of those with a large enough house bank is one key to a practical electric kitchen. (Ours is 420 ah)
Periodic recharging is a second key. We use the micro and mag unit freely on the road since something like 100 amps is available after we pull out of a rest stop. We use those more sparingly in camp and get about four days to 50% SOC before wanting more road miles. Even a short grocery run quickly adds a day or two of ah's. Others could extend their stay or electricity consumption with solar or gennie use.
Conservation is a third key. We use a propane bbq tank outside for grill, camp stove and heating hot water. We can't do much about the dc fridge consuming 2/3 of our daily ah's in camp but we can choose how much micro and mag we use. The micro typically runs for a few minutes. Mag units excel at simmering so that adds considerable kitchen utility at 10-20% of their full-power draw.
Always great to minimize heat sources in hot weather. The induction unit transfers around 70% of the btus into the pot compared to about half that for propane. Cooking outside works even better for both. An inexpensive portable mag unit is compact and happy to sit next to the campstove if that is useful.
Our mag unit use typically requires less than 20 ah/day as a supplemental camp burner. Road use requires no budgeting at all.
Dan
02 Freightliner Sprinter 2500 long tall home brew conversion