Dry-fry the pumpkin seeds in a pan, set aside.
Grill the chillies, then remove their skin and deseed them.
Remove the coriander stems, then put the leaves in a food processor with the other ingredients, except the mayonnaise (or yogurt). Set aside.
Cut the tortilla into long, 1cm wide strips, then fry them in a pan until crispy.
Wash and dry the lettuce leaves, then arrange them in a large serving bowl.
Sprinkle the tortilla strips, toasted pumpkin seeds, chilli slices over the lettuce, then drizzle with the dressing, sprinkle with freshly ground pepper and grated cheese. Serve and enjoy!