Preheat the oven to 350 degrees F.
Combine the cauliflower and 2 tablespoons of the olive oil in a medium bowl. Heavily season with salt and pepper. Add the oregano and toss to combine. Spread the cauliflower evenly on a baking sheet. Bake until the cauliflower is caramelized and golden in color, about 40 minutes. Let cool.
In a small mixing bowl, mix the pepperoncini, pickling juice and remaining 1 tablespoon olive oil. Season with salt. Mix well until evenly incorporated.
Toss the pepperoncini mixture, Parmesan, jalapenos and pine nuts with the roasted cauliflower. Garnish with the parsley and serve.
Recipe courtesy of Marcela Valladolid