Put bite size pieces of Kilbasa in a large frying pan and start to cook on low heat. Cut the Green Pepper and onion into slices that are no more than 1/4" thick. I suggest that you cut the onion into quarters then cut into slices. Quarter the tomatoes and add all the veggies to the pan with the sausage. Cover the pan and continue to cook on med/low heat until the peppers and onions are tender and the meat is cooked through. Serve in bowls or on a plate with a good rim to hold in all the juices that will be produced in the pan. Serve with a nice fresh rye bread.