We have the larger Remoska (Grand) and cook almost everything in it (even at home). It consumes 1Ah per minute from our battery, if not on electric hook up.
We use a silicone cake mould, which we’ve found lines the bottom of it well and makes it easier to clean.
Bought some rectangular metal cake tins which we use to heat up curry and rice, or make individual shepherds pies, crumbles etc..
Sometimes we decant ready meals into the tins to heat them up.
Can do roast potatoes and veg, heat pies, “roast” chicken etc..
As
@CAB says you need to have somewhere for the lid; one of us tends to hold it whilst dishing up and then just put it back on.
The only thing we use a hob for is a fry up and for that we use a two ring electric hob outside. Bad weather, no fry up

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Our gas hob is completely redundant, much like our gas grill (which is used for food storage).
If I could spec the van again, I wouldn’t have gas at all.