In a saucepan, bring water to a boil. Add rice and stir. Reduce heat, cover and simmer for 20 minutes.
In a large skillet over low heat, cook sausage for 5 minutes. Stir in onion, green pepper and garlic; saute until tender. Pour in beans and tomatoes with juice. Season with oregano, salt and pepper. Simmer uncovered for 20 minutes. Serve over rice.
