Combine all ingredients, except the non dairy milk, in a small bowl and stir well to combine. Add 1 tbsp non dairy milk at a time and stir until you reach your desired consistency. (I used 2 tbsp). Set aside.
Cook the instant rice according to package directions (this usually takes about 5 -10 minutes depending on brand). When the rice is done, add to the same pot the black beans, corn, and salsa. Cook over medium heat, stirring occasionally until heated through, about 5 minutes. Take off heat, add bell peppers and cilantro if using. Pour in Creamy Avocado Dressing and combine.
~To save an extra few minutes, start the rice first and make your dressing while the rice is cooking, then finish the rest of the recipe. Or you can skip the avocado dressing and just add chopped avocado for an ever easier and cheaper option.