The one time I remember seeing hasparat, it looked like an organic Indian burrito a local grocery chain carried all too briefly. So I imagined it to have a grainy curry texture to it, probably tasting like creamed spinach and the fires of hell.
Plomek soup struck me as a plain seaweed dashi. Unadorned seaweed broth is a bit... flavorless.
Kanar looked like syrup.
Gagh probably tastes like live octopus.