Very interesting the different names for the same thing
I've made it loads of times with veggie mince Andee and its really nice!! 
I'd probably add some chilies & call it chili mac!

We had roast chicken last night, with roast potatoes, carrots & steamed courgette. Today I've got to make chicken broth from that.
And I think DH is making some kind of beef stewie thing (from our new Jamie Oliver book about Spain, France, Morocco, Sweden, etc...) so no idea what exactly that's going to be. The meat was marinating overnight.