Bring a large pot of salted water to a boil, then add the pasta and cook until al dente, about 8-10 minutes. Drain and reserve a cup of the starchy pasta water.
While the pasta cooks, heat olive oil in a skillet over medium heat. Add the diced pancetta and cook until crispy and golden, about 4-5 minutes, releasing rich aromas and a satisfying sizzling sound.
Add the minced garlic to the skillet with the pancetta and cook until fragrant, about 30 seconds, stirring constantly to prevent burning. The garlic should turn slightly golden and release a warm aroma.
Stir in the peas and cook until they are bright green and tender, about 2-3 minutes. The peas should shimmer and release a fresh, sweet scent as they heat up.
Add the drained pasta directly into the skillet with the pancetta and peas. Toss gently to combine, allowing the ingredients to mingle and absorb flavors for about 1 minute.
Pour in half a cup of the reserved pasta water and stir vigorously. The starchy water will help create a silky, cohesive sauce that coats the noodles beautifully.
Sprinkle the grated Parmesan cheese over the pasta and toss again. Adjust the consistency with more pasta water if needed, and season with salt and black pepper to taste. The dish should have a glossy finish and a balanced savory flavor.
Serve the pasta hot, garnished with extra Parmesan and freshly cracked black pepper if desired. Enjoy the dish while the flavors are vibrant and the texture is perfectly creamy and crisp.