01 - Preheat oven to 400°F (200°C). Halve the spaghetti squash lengthwise and remove seeds. Brush cut surfaces with olive oil and season with salt and pepper. Place squash cut side down on a parchment-lined baking sheet.
02 - Roast for 35 to 40 minutes until flesh is tender and strands separate easily with a fork. Allow to cool slightly after roasting.
03 - While squash roasts, whisk eggs, Parmesan, and black pepper in a mixing bowl until smooth. Set aside.
04 - In a large skillet over medium heat, cook pancetta until golden and crisp, approximately 5 to 7 minutes. Add minced garlic and sauté 1 minute. Remove skillet from heat.
05 - Use a fork to scrape the squash into strands. Add the squash to the skillet with pancetta and garlic, tossing gently to distribute.
06 - With the skillet off the heat, immediately pour the egg-Parmesan mixture over the squash and toss vigorously until a creamy sauce forms, using residual heat to cook the eggs.
07 - Plate immediately. Garnish with additional Parmesan, cracked pepper, and fresh parsley as desired.