Vented baking sheet

I have a weakness for tater tots.  So, to make them crisp without frying them I put them in a hot 450 F oven on a vented baking sheet.

I couldn't find a picture of the one I've got, but it's similar to the linked picture of the vented pizza crisper.  It's a baking sheet with ridges and holes on the bottom to let the hot air circulate around my fries.

I use it constantly.  Which means I should probably lay off the tater tots; they're frozen, thus filled with extra oil.  But at least I'm not adding any more oil.