Prep your flank steak by cutting them into cubes. Next season with pepper, italian seasoning, salt and worcestershire sauce. Next sprinkle with protein flour (or flour of choice).
Heat a dutch oven or deep skillet to medium high heat and add extra virgin olive oil. Once oil is heated, brown the flank steak on all sides. You may need to do this in batches so as not to crowd the pan. Remove the flank steak from the pan and turn heat down to medium heat.
To the same pan, add the onions and garlic and cook until softened, about 1 - 2 minutes. Next add the mushrooms and stir until softened. Once the mushrooms have cooked down, add the water and bouillon cube and bring to a bubble.
Once the water is to a bubble, add your flank steak back and tomato paste to the pan and give a good stir to combine. Reduce heat to low and place a lid on the pan and braise the flank steak for 30 - 40 minutes stirring occasionally.
While your steak is braising, prep and chop your remaining vegetables.
Once the steak is fork tender, add your veggies to the pan along with the bay leaf and red wine (if using). Replace lid on the pan and let cook for another 30 - 40 minutes or until the sweet potatoes are tender.
Once done, sprinkle with some parsley and enjoy!