For an even richer flavor, toast the pumpkin seeds in a dry pan over medium heat until they are fragrant and lightly browned before adding them to the risotto. Adjust the amount of chile peppers to your preference. For a milder flavor, remove the seeds and membranes from the peppers before blending. The key to a perfect risotto is constant stirring! This helps release the starches in the rice, creating a creamy texture. If you don't have Manchego cheese, Parmesan or Asiago cheese would also work well. Risotto is best served immediately, but leftovers can be stored in the refrigerator for up to 2 days. Reheat gently with a little broth to restore its creamy texture.