DH and I have a tiny micro caravan that we fit in our garage. It has a canvas pop top so we still get that 'sleeping under canvas' experience, along with a bed, electricity, heating, a fridge, washroom with toilet and 2 gas rings.
Just at the end of a 2 week trip, we've not eaten out once and have made some great 1 or 2 pan meals.
Examples:
Cook pasta in one pan, stir in pesto, pine nuts and parmesan. Do veg in another pan (we've done sautéed fennel but also some mixed boiled veg this trip).
Chorizo and bean stew. One pan meal, fry onion and garlic, add tinned tomatoes, butter beans, smoked paprika, any chopped veg and cook for a while. Serve with bread for anyone who wants it.
We also have a Kampa electric griddle which we cook outside on when it's warm and dry. We've done sausages with mushrooms, peppers and tomatoes, vege burgers with salad, haloumi with pitta bread and salad, pizza type things with flatbread, passata, grated cheese, olives and chorizo.
We eat well every day using 1 or 2 hob rings and the griddle sometimes.