Mashed Cauliflower Shepherd's Pie Recipe

The second course i made at the salt lake home show on friday night was my healthy sweet potato shepherd's pie and this mashed cauliflower shepherd's pie. both were a huge hit i have been a big fan of subbing cauliflower for white potatoes over the last couple of years or so. it all started with my riced cauliflower. since then i've also made mashed cauliflower half a dozen times and even over christmas made a cauliflower/potato mashed blend that was pretty delicious. there's just something so comforting about this meal. in my original recipe i used ground beef and regular.