Lay the ribs on a full sheet pan and season with the salt and pepper on both sides. Set a large Dutch oven over medium heat and add the olive oil to the pan. Once the oil is hot, about 1 minute, add the ribs, in batches, to the pan and sear until golden brown in color, about 5 minutes. Turn the ribs over and sear the second side as well. When the ribs are caramelized on both sides, set on a sheet pan and repeat the process with the remaining ribs.

Add the onions, bell peppers, and celery to the pan and cook, stirring occasionally, until the onions are translucent and the celery and peppers are lightly caramelized, about 6 to 7 minutes. Add the garlic to the pan and cook until fragrant, about 30 seconds. Sprinkle the flour into the pan and stir with a wooden spoon to combine with the vegetables and oil to make a roux. Cook the roux, stirring constantly for 2 minutes. Add the beans and stock to the pan and stir to combine with the roux. Bring to a boil and reduce to a simmer. Add the diced tomatoes, the seared ribs, sage, thyme and bay leaves to the pan. Simmer the ribs for 2 hours, stirring occasionally and scraping the bottom of the pan to prevent sticking.

After 1 1/2 hours, check the ribs to see if they and the beans are both tender. Season with the Essence and continue to cook for an additional 30 minutes. When the ribs are done, add the chopped parsley to the pan and serve hot over steamed rice.