Cook the brown rice. Meanwhile, heat up 1 Tbsp oil (olive, vegetable, or coconut works well) in a large pan over medium-high heat and cook the onion for about 5 minutes. Add garlic and cook another 2 minutes. Stir in the beans and heat through. Fry the kale with the bean and onion mixture for a few minutes until wilted. Add the apple cider vinegar, Worcestershire sauce, and corn and heat through. Sprinkle the rice with the Old Bay seasoning and then add the bean and onion mixture, stirring to combine.