Want an oven or microwave

My hymer swing comes with a 3 ring cooker.....ok no problem there, now when on hookup it's easy we use a 240v microwave or other household appliances but am thinking of being adventurous So if you look elseware on here I have invested in a folding solar panel and going Eco friendly so am on the lookout for a 12v oven/microwave anyone got any recommendations as we (My wife and I ) are not BBQ fanatics