Heat skillet over medium-high heat with hazelnut oil.
Chop pistachios and add into the pan, coating with hazelnut oil.
Trim asparagus stalks (about 1 inch off of the bottom). Mince shallot and add both the shallot and asparagus to the pan. Stir vegetables.
Chop spring onions and garlic, add along with other vegetables. Squeeze juice of one lemon into the pan and stir together.
Remove stems from Italian parsley and set aside.
Remove vegetables from heat and place in a serving bowl or plate. Toss in parsley, season with salt & pepper and optionally garnish with Pecorino Romano.