Italian sausage soup

I make a lot of "garbage soup", or soups made from whatever I have sitting in the refridgerator when it looks like there's nothing to make. This one was awesome.

3 hot Italian sausages
1 small onion
1 green bell pepper
1 red bell pepper
1 qt. vegetable stock
1 can pizza sauce

Heat the stock in a pot with the pizza sauce. Remove the casings from the sausage and make little 1" clumps or balls with it. Quickly brown the sausage clumps in a pan with a little oil over medium heat. Leave the fat and throw the sausage in the stock. Chop the onion and peppers into bigger pieces and sautee in the fat from the sausage. When they start to brown add the vegies to the pot and simmer uncovered for 20 minutes. Season with fennel seed, garlic, pepper, salt or whatever you like. You can add some portabellas or rinsed giardinara peppers. The second time I made this I cubed some French bread and baked it into croutons for the soup. This isn't exact because I'm constantly tasting an adding stuff, but it's pretty basic.