Cook 1 1/4 cups wild rice blend as the label directs (discard the flavor packet, if included). Meanwhile, melt 2 tablespoons butter in a large skillet over medium-high heat. Add 1 sliced small shallot, 1 sliced jalapeno, 12 ounces sliced mixed mushrooms and 1/2 teaspoon kosher salt; cook, stirring, until tender, about 5 minutes. Fluff the rice and add to the skillet; season with salt. Stir in 3 tablespoons chopped cilantro.