Mrsemmapeel10
Franburn - thank you for your encouragement! Where do get the silicone inserts from please?
I had some reusable cake tin (the ones you bake a cake in) liners bought ages ago from Dunelm, and I've cut one of those to fit the bottom of my air fryer cage, and even put some holes in it with a hole punch so that the air can still circulate more freely. That was my theory anyway, though it would probably work just as well without the holes.
I only use it when I want to protect the non-stick surface because I'm putting a casserole dish in, or when cooking some slightly messy foods. For instance, I made myself a toasted cheese sandwich for lunch today, and I put that liner in to catch any cheese that ran out.
If I'm making something very messy, I sometimes line the bottom of the drawer with kitchen foil. It makes cleaning up afterwards very easy.