The bell peppers & carrots should be diced.
The onion & celery should be cut into small rectangular strips(about 4~5mm long and 1cm thickness).
Since the canned tomatoes are already diced, it can be used as is.
In a frying pan, saute the onion, carrots, and celery using olive oil.
Lightly add some salt and pepper during this step.
Once the vegetables begin to soften, add and saute the bell peppers.
Then add the canned tomatoes and 150ml of water, and stew for a bit.
Next, add the consomme and stew once again. Finish up by adding salt and pepper to taste.