Spoon the salsa macha into a big soup pot - make sure you get a good amount of oil along with the dried chillies. Add the onion and garlic and cook gently on a medium heat until the onion is softened.
Add the tinned tomatoes and vegetable stock and bring to a simmer. Season with salt and pepper.
If adding squash, courgette, or sweet potato, add to the pot and simmer gently until the vegetables are tender. Add quick-cook vegetables, black beans, and/or shredded chicken once all the other vegetables are cooked.
Add the lime juice. Now check for seasoning. Add more salt, pepper, and lime to taste. (You might even want more salsa macha for extra kick.)
Serve in bowls with your chosen garnishes. Enjoy!