Cast iron. I still have plans to improve my setup, but I have a large single burner with a 16" pan on it sitting down inside of a grill shell under a covered area outside & I just cook out there year round now. The only days that suck are really windy days that can blow out the flame. But those are fairly rare & winters here are mild enough that it's tolerable.

I need some PPE or something though, I regularly burn myself with spattering grease. Cooked some bacon today to go with my steaks & got my hand pretty good 😑

But the sear & the flavor & lack of cleanup (aside from wiping down the grill) can't be beat.