Steps
1. Preheat a pan over medium heat and add the olive oil.
2. Add the chopped onion and mix until lightly browned, about 3 minutes.
3. Add the tuna, cumin powder, chili powder, coriander powder, garam masala, red chili powder, and salt and mix everything together.
4. Soak the bread slices in water for 3-5 minutes.
5. Once the bread is soft, add to the pan and mix.
6. Add cilantro and mint leaves, cover the pan, and cook for 5 minutes.
7. Remove from heat and serve the chilla.