I see a lot of post with folks using an iron skillet on a kettle. My question is, doesn't this defeat the purpose of using the grill? I mean, I love any excuse to fire up the coals, but kinda seems like a waste... Just curious.
I don't think so. You can broaden your horizons with more recipes, more food choices, more styles with cast iron.
I have at least a dozen cast iron pieces that I use on my grills, including but not limited to
broken-handled 12 inch skillet; great for grilled onions and peppers
50+ year old Wagner 10" skillet; smooth surface is great for stuffed burgers
20 inch monster skillet; Paella anyone?
cuisinart enameled dutch oven; easy cobbler with canned fruit and a boxed cake mix
large heavy dutch oven; soups and stews and chili
Weber Q220 griddle; out of production model; its a crispy-bacon making machine
wee 5 inch skillet; brown butter
lodge sauce pot, small; sauces and marinades
mid sized dutch over - 5 qt maybe... great for fondue/queso fundido
I love me some brussel sprouts cooked in bacon fat over indirect yet high heat (500* or more). How you gonna do that on a grate?
And why do I use a Cuisinart enameled dutch oven on the grill? Because if I used my Le Crueset I think my wife would smack me!