we had a meal at the weekend, cooked a ham, had cauliflower cheese, roast pots, sweet pots,parsnips, onions and sprouts, everything left over was thrown into the ham stock and pulverised, lovely soup..so, I'd just bung everything in to some stock, apart from the beetroot, maybe ..and make a pot of soup..it's a surprise what it tastes like ;D
I often throw frozen courgettes in stir fries