1.    In a large bowl, toss cauliflower with buttermilk; set aside for 15 minutes.
2.    Mix cornstarch, flour, and Cajun seasoning in a shallow bowl. Dredge cauliflower, shaking off excess.
3.    Fry in 350°F oil until golden and crisp, 3–4 minutes. Drain on paper towels.
4.    Toss hot fried cauliflower in warmed Al Pastor Sauce.
5.    Mix mayonnaise and hot sauce; spread on both sides of toasted rolls.
6.    Build with lettuce, tomato slices, sauced cauliflower, and top roll.
				
			 
	 
		
			
				
				
					Hold cauliflower warm in a perforated pan over a steam table before tossing in the sauce to keep its crispness.