To make the tempeh, mix the marinade ingredients together in a container then add the cubed tempeh and mix well. Let sit for 20-30 minutes to marinate. When you're getting ready to start the recipe, preheat the oven to 425 F. Place the tempeh cubes on a parchment paper-lined baking tray and bake for about 20 minutes until hot, gooey and starting to crisp.
If you don't already have brown rice cooked, prepare some now according to package instructions. Depending on your nutritional needs, use anywhere form 1/2 cup to 1 cup of cooked brown rice per serving.
Thinly slice the red cabbage using a mandolin if you have one. If not, use a sharp knife. Add to a mixing bowl and mix with the vinegar, sweetener and a pinch of salt. Set aside until you're ready to assemble the bowls.
Bring a pot of water to a boil stovetop to prepare for steaming the broccoli. Once boiling, steam the broccoli for 5-6 minutes using a steamer basket until bright green and tender but still crisp (al dente). If you don't have a steamer basket, bring about 1/2 inch of water to a boil in a large skillet or pot, add the broccoli, cover and steam for 5-6 minutes. Remove the lid and drain.
Divide the cooked brown rice, cabbage slaw, steamed broccoli and baked tempeh between 4 servings.