This is not really a recipe. I bake sweet potatoes - and at what temperature? I dunno, I generally just throw them in the oven while I'm making something else and let them stay there until they're done - and once they're squishy AND WHILE I AM WEARING OVEN MITTS (this is important. Believe me), I cut them in half and squash them out of their skins into a heatproof bowl. Then I mash them and add some butter and nutmeg. Ta da!
Maybe your kids wouldn't love these, but my kids, God bless 'em, actually get EXCITED. I obviously am a wonderful mother or my poor kids are just really deprived. One or the other.