In a medium bowl, combine the capsicum, carrots, bell peppers, boiled corn, onion, fresh coriander, cottage cheese, Schezwan sauce, mayonnaise, salt, and chili flakes. Mix everything well.
Place a slice of bread on a flat surface and flatten it with a rolling pin. Spoon some of the veggie mixture into the center. Spread the filling slightly, leaving two opposite corners mostly uncovered.
Top the filling with grated cheese.
Bring the two opposite corners together and overlap them slightly. Secure the corners with a toothpick. Repeat with the remaining bread slices.
Lightly brush the tops with butter.
Preheat the air fryer to 385°F. Place the bread boats in the basket and cook for about 10 minutes. Check them after 5 minutes so they don’t overcook.
When the bread boats are golden and crisp, take them out of the air fryer. Let them cool for a minute, then remove the toothpicks and serve warm.