jambalaya with a twist

Ingredients

• 1 medium yellow onion, chopped
• 1/2 medium green bell pepper, chopped
• 1/2 medium red bell pepper, chopped
• 2 cloves garlic, minced
• 2 tablespoons olive oil
• 1 package andouille sausage (johnsonville 13.5 oz), sliced into 1/2" rounds
• 1 can diced tomatoes with green chilies (14.5 ounce)
• 1 can stewed tomatoes, (14.5 ounce)
• 1 can black beans (14.5 ounce), rinsed and drained
• 1 cup water
• 3/4 cup long grain white rice
• 2 tablespoons cajun seasoning or to taste (optional)