There's lots of mixer bread recipes on the web. I used the kitchen aid simple white bread to start, and then branched out from there. Don't forget pizza dough!
Also, we have the food mill/grinder attachment and LOVE it - we use it for falafel or other recipes that call for things to be processed. The pasta roller is good too, but takes a bit of practice before you get the knack of it.
Mr. Mashamoo says often that the mixer was one of the best investments he ever made.