For me cottage pie is like a warm hug, just wholesome comfort food at its best. This is lighter and better for you plus upping vegetable intake, perfect! Don't like cauliflower? Try parsnip and butternut squash purée instead.
Gently sweat diced vegetables: onions, carrots, leeks, celery, squash until softened. Use whatever veg you like in the quantities you want.
Brown 500g of ground minced meat, I used beef. Add a tblsp of tomato paste, 200ml of stock and about half a wine glass ...