Preheat oven to 220°C fan forced. Arrange Broccolini® in a large roasting pan. Drizzle with 1 tablespoon of oil and sprinkle with 1 tablespoon of Mexican spice. Turn to coat. Roast for 8 minutes until almost tender. Combine the remaining oil and remaining Mexican spice in a bowl. Add chicken and onions, stir to coat.
Heat a non-stick frying pan over medium heat. Cook the chicken and onions in two batches for 3-4 minutes until chicken is just cooked though.
Place 4 tortilla on a board. Spread a little mayonnaise over each tortilla. Arrange chicken and onions on one half of each tortilla. Top with Broccolini®, tasty and mozzarella cheese. Fold over to enclose filling. Reduce oven to 180°C fan forced.
Preheat a sandwich press. Spray both sides of the quesadillas lightly with oil. Toast 2 quesadillas at a time for 3-4 minutes until golden. Remove to a tray and keep warm in the oven while cooking remaining quesadillas.
Meanwhile, combine the Qukes®, avocado and coriander. Serve quesadilla topped with Qukes® salsa and remaining chilli mayo.