Heat oil in a large non-stick frying pan over medium heat. Add green capsicum and onion; sauté until softened, about 5 minutes. Add chilli, tomato, cumin and salt; cook for about 3 minutes.
Add cheese, coriander and Tabasco. Reduce heat to low. Cook, stirring, until cheese melts and mixture is creamy, about 3 minutes. Serve warm with red capsicum, carrots and celery.