I had doubted that hasparat was anything like the description, and while reading "The Star Trek Encyclopedia: A Reference Guide to the Future" (updated and expanded edition), I found the ACTUAL recipe. Like I suspected, it is nothing like the description. So here is our question, which to make? A tongue searing, eye watering (almost inedible) food? Or a dish that looks and tastes good? Or the actual recipe? Since I'm not making it for your function, I have included the official recipe and a couple of ideas for variations.
According to the book, DS9's property master Joe Longo made Hasparat from flour tortillas, layered with cream cheese, with red and green peppers. The tortillas were rolled, sliced and served. Yum!
If you watch the episode, the sandwich is about 4 to 6 inches long, 2 inches thick, about 3 inches wide, and appeared to be served cold.
I thought of Vegimite for creating a "Hot and Spicy" (as well as briny) version of hasperat. Vegimite is an Australian sandwich spread, and is mentioned in the Men At Work song "Land Down-Under". I may or may not have had Vegimite in the past, it would be nearly 22 years since I have, if I did, if I did actually have it, I remember that it was quite nasty. Vegimite is supposed to be a very strong salty "you gotta had been eating the stuff since infancy or else you're gonna hate it" food. (I still want to experiment with it though.)
Another option for the Hot and Spicy version comes from Ka'Diin Kasara, and uses Kim Chee instead of the vegimite, and has the benifits of having the red and green colors as well as being briny naturally.
So, to create an Un-Official version of hasperat:
Take a flour tortilla, lie flat, spread with a layer of Vegimite OR Kim Chee, AND/OR cream cheese (all optional), add a layer of a red and green peppers (dark green lettuce or a similar dark green leafy vegitable would work instead), add any meat or cheese, and any salad dressing desired. Roll the sandwich into shape, cut off ends, serve.