Slice shitake mushrooms and spring onions.
Fill a large shallow dish or pan with warm water.
Dip one rice paper wrapper into the water, ensuring it's fully submerged for about 5 seconds or until it becomes soft and pliable.
Carefully remove it from the water and place it flat on a clean kitchen towel or a damp cutting board.
Place 3-4 sliced shitake mushrooms in the center of the softened rice paper wrapper, leaving some space around the edges. Sprinkle spring onions.
Fold the bottom edge of the rice paper wrapper over the fillings, then fold in the sides, and roll it tightly to enclose the fillings completely, similar to rolling a burrito.
Prepare a steamer by bringing water to a boil. Steam for 5-7 minutes, or until the rice noodle sheet is cooked through (doesn't take long at all!).
Meanwhile, mix the ingredients together for the spicy peanut sauce.
Place the hot steamed rolls on the bed of peanut sauce. Sprinkle with chili oil, some of the peanut sauce, chopped scallions and toasted sesame seeds.
Serve them hot! Enjoy!