Heat a pan with oil, add the onion, saute until translucent or tender. Add the garlic, potatoes, carrots, celery, stir to mix.
Add tomato paste, 21 seasoning salute, dried basil, chili powder, chili pepper flakes, bay leaves, and salt, stir to mix well. Lower the heat, cover, simmer for 2 minutes.
Add mushrooms, bell pepper, plantain banana, and vegetable broth, stir to combine well. Cover and simmer for another 2 minutes or until the potatoes are tender. Remove bay leaves. Serve immediately, garnish with parsley.