1Open can of beans, drain liquid, and put in a large enough bowl for mixing in other ingredients. Microwave or otherwise cook until entire bowl is warm. (About 1:30 seconds in a 1500 watt microwave oven)
2While beans are still slightly warm, add a substantial amount of white rice, as much as you prefer.
3Put entire mixture back into microwave and cook for another minute and a half or until very warm or hot.
4Afterwards, take the still-hot mixture of rice and beans and mix in the shredded cheese until melted into the mix.
5Sprinkle diced onions on top; you can either serve this way or mix onions in. (I prefer the latter)
6Optional: Mix with slightly wilted spinach for color, flavor, and texture.