Brown 1" sausage slices in a skillet. In a 2 1/2 quart sauce pan, prepare the rice mix according to the box directions. After simmering for 10 minutes, add the chopped onion, chopped bell pepper, browned sausage slices, and drained tomatoes. Cook for another 20 minutes, or until the water is absorbed. Remove from the heat and let stand for 5 minutes. Fluff with a fork before serving. Salt and pepper to taste if desired.