Yep, it'll dry out pretty quick. As a former cafeteria manager I recommend keeping some liquid in it. Thinned out sauce would work but would have to be added pretty often. Also, change out the pan every hour or so (more often if you want to keep it looking good) and make sure you turn the product over each time. Good luck.
Southern Brethren BBQ Competition Team
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KingFisher Gator Rotisserie cooker, WSM, Stainless 5 burner with IR gas grill, Turkey Fryer, Weber JD Commemorative grill, slightly used Bandera chamber for future use as a cold smoker, Masterbuilt 40" insulated ELECTRIC smoker