You obviously can only use all metal pots and pans in a WFO, so we started off using the stuff we had for the AGA roasting dishes, Le Creuset pots and baking dishes etc.
The big roasting dishes we use are AGA and Mermaid which are anodised aluminium pans.
We bought some Castey Aluminium non stick very low baking trays and pots with metal lids. Castey are aluminium cast and machined with a non stick lining. we find them very good for the WFO oven, the big advantage is they are light as there not cast iron and easy to use.
Also I have a Pair of Tucker Burnguard cooks 15inch mitten gauntlets which are rated to 450 deg F , made in Nomex the stuff of fire proof suits for military aviation etc. I handle pans hotter than 450F and they are ok Providing they are dry and you don't hang on for too long.
Don't do what I did use one glove, a pan about 300C for flashing food and start to drop it , the pan started to slip so I caught it with my bare hand and moved it to the table along side, fearing going to casualty I held it in iced water for about 3 hours, bloody cold, luckily I was suitably Anesthetised, next day expecting the worst, they seemed Ok if a little glazed and tender, a week later you would not know anything had happened. I was lucky but Iced water saved my digits.
I could not find suitable grills to go over the roasting pans so I had these made at work, the bars are 5mm stainless rod, the rounded feet are to put on the oven floor if I use it as a trivet to keep the pan off the oven floor or to cook steak on in the oven ( No pan under).
The little spigots when the grill is turned over the other way fit onto the corners of my roasting pans to hold roasts clear of the pan they are over or to do tandoori chicken on etc.
Interesting topic as I was in MAKRO the other day and noticed they do shallow iron pans (steel handles) at very reasonable prices i.e. a 28cm frying pan was less than a tenner. Not suitable for long term/time stuff but I'm hoping to do breakfast for 20+ following a pizza party and they'll do very well.