Cook spaghetti according to package directions. Reserve 1/2 cup pasta cooking water; drain.
Heat olive oil and black pepper in a large skillet over medium-low heat until fragrant, about 2 minutes. Remove from heat. 3. Add pasta, San-J Sesamo and butter to skillet. Add 2-3 tablespoons of pasta water and cheese and toss to combine. Add lemon zest and additional pasta water, as needed, reheating as necessary, until sauce is creamy, about 1-2 minutes.
Garnish with green onions, sesame seeds and additional lemon zest. Drizzle with additional San-J Sesamo and serve immediately.
* The Gluten Free recipes that appear in this website incorporate a variety of San-J's products that are Certified Gluten Free. Please be sure to consider the other ingredients to make sure they comply with your dietary needs and restrictions.