yes I do it. I make the sofrito inside though and then bring the pan out to the grill. be careful when you bring it in, it charred a wooden cutting board because the bottom was so hot.
and remember after adding the rice and liquid and stirring it all together do not stir again. Make sure you move the pan over the burner or grill so the Socorat cooks evenly.
It worked beautifully! Nice crust on the bottom and sides. I still think I’ll get a paella pan because there are other disadvantages to using cast iron, I discovered, but overall a really nice outcome.
Last night, we used lobster, shrimp, chorizo, clams, and mussels. No chicken or rabbit. I am lucky to live pretty close to both The Spanish Table and Mutual Fish (the best seafood shop in Seattle, IMO), which helped make the paella pretty good.
Mutual Fish is located on Rainier Ave. S., in what I guess would be called Rainier Valley. Not a great neighborhood, and a very unassuming storefront. Really great quality – the best I’ve had around Seattle not counting the various seafood feasts at Steve Saxon’s house…