Cook until the chicken is lightly charred and cooked through, 15 to 18 minutes. Discard any remaining adobo sauce that has been used as marinade.
In a large bowl, toss the greens with the onion and cucumber with just enough dressing to coat and season to taste with salt and pepper.
Start to assemble the sandwiches adding a smear of ricotta tahini spread on each slice of bread.
Mix together short ribs and cheese in a medium bowl.
