1/4teaspoonground black pepperplus more for garnish
1/2cup(30 grams) Freshly grated Parmesanplus more for garnish
1/4cup(7 grams) fresh parsleyfinely chopped, plus more for garnish
1/2cup(120 milliliters) reserved pasta water
Instructions
Bring a large pot of salted water to a boil. Add the spaghetti and cook until just al dente, barely tender. Drain, reserving 1/2 cup (120 milliliters) of the water, and set aside.
While the pasta is boiling, heat the olive oil in a large skillet over medium low heat.
Once thoroughly heated, add the garlic and cook until fragrant, 30 seconds to 1 minute.
Add the sliced mushrooms. Cook, stirring occasionally, until the mushrooms start to brown, 5-7 minutes.
Season with the salt and pepper.
Add the drained pasta, Parmesan, and parsley to the skillet and toss to coat, slowly adding the reserved pasta water.
Serve immediately with additional parsley, ground pepper, and freshly grated Parmesan.