Does anyone have much luck with re-roasting?

I’m planning on jumping on board the souper cube gravy train. But my main goal is to make veggie based side dishes to increase my veggie intake. Currently, I rely too heavily on air frying carbs and chicken.

What I’m hoping to do is gather a few oven roasted vege recipes (roast veg, cauliflower cheese, tian) freeze them and then pop them in a mini bar loaf tin in the airfryer.

Before I spend big - does anyone have any success stories with this method? Or any potential recipes?

Thanks so much!