I love soup and would eat more vegetables and low fat meals if I could crack actually making it so that its edible 
So tonight I thought I would use up some veg and make a healthy soup for tomorrow lunch. I fried an onion and then put some potatoes,carrots & swede(twas a bag already cut up meant for mashing but didnt get used) and a few peas along with 2 oxo cubes and about a litre of water into a pot.
I have simmered it for about an hour so far .
It tastes like brown water 
I have lots of herbs and spices ,tomatoes (canned and in paste form) and lots of other stuff I can use to make it tasty -but what? When Ive tried spicing previous soups up it hasnt made for edible results .
I am generally a good cook but am beaten by this simple thing.
Help 