In a medium sized bowl, add in the diced sweet potato. Make sure you dice them into 1/4 inch cubes, you want them in small bites. Then drizzle 1 tbsp. olive oil over the potatoes.
While the sweet potatoes are cooking, you can start on rest of the veggie mixture. In a medium sized frying pan add 2 tbsp olive oil, 2 cloves minced garlic & the jalapeño deseeded & diced into small pieces on medium heat.
Then add in shredded Brussel sprouts & sliced mushrooms. In a small bowl put the remaining of the cumin, onion powder, salt, chili powder, garlic powder & paprika, then whisk together.
Then add in the sliced tomatoes, black beans drained & rinsed, corn & then sprinkle in the remaining seasonings. Cook down until they mixture starts to brown & caramelize about 5 more minutes.