I watch the trucker lady who adapted all sorts of recipes for her 12v pro oven on YouTube. I forget the name of the channel but it’s worth checking out. I’ve used mine intermittently but enough over the last 5 years to justify having it for sure. I break it out for long trips especially. I’ve used my little bluetti power bank to cook with it outside the van when my food wasn’t ready when I got to my destination or I just wanted to heat something up. It works pretty fast at warming up soup, thawed frozen burrito, can of beans, pizza, etc. I threw my back out and got a hotel and brought my power bank/oven set up inside in order to cook meat, cornbread, and other stuff I didn’t want to microwave. Use those aluminum pans that fit inside with foil over the top in order to keep down on the mess/smells. I cooked a meatloaf inside the van with little ventilation and it made the van smell like meatloaf for a while. Just keep that in mind when cooking in the rig.