I have a couple of favourites:
Roasted vege soup
Roast 2 carrots, 1 parsnip, 800g pumpkin, 350g kumara, 1 red capsicum, 2 onions and garlic all chopped to similar sized pieces for an hour and a half at 180 degrees. Remove the capsicum after about an hour.
Puree veges until smooth adding 3 cups of vege or chicken stock as you go.
Roast kumara soup
800g golden or orange kumara peeled and chopped in to similar sized pieces, 1 red onion quartered, 1 red capsicum seeded and quartered, 2 large cloves garlic, chicken stock, water, salt and pepper.
Preheat oven to 200 degrees. Place kumara, onion, capsicum, garlic in roasting pan and bake for approx 40 mins. Blend with two cups chicken stock, 2 cups water until puree consistency. Season to taste.