In a food processor, combine 1/4 cup of the toasted pine nuts, fresh herbs, scallions, garlic, and salt. Pulse until coarsely chopped.: At this stage you will smell the sharp green aroma of freshly chopped herbs and the warm nuttiness from the toasted pine nuts . The sound is intermittent pulses as the blade bites through leaves and nuts, and the texture should look roughly chopped rather than a paste. This coarse texture keeps some bite in the pesto, which I prefer for visual appeal and mouthfeel. If you overprocess, the mixture will be too fine and the pesto may oxidize faster and lose its bright color. A common mistake is to run the processor continuously, which generates heat and can make the pesto feel dull. Pulse in short bursts, scraping down the sides to ensure even chopping.
Add the olive oil and lime (or lemon) juice, then pulse again, scraping down the sides of the bowl as needed.: When you add the extra-virgin olive oil and citrus, the mixture will start to shine and smell rounder, with a citrus lift cutting through the herbaceous base. The pulses should emulsify and create a slightly glossy sauce. Visually, you want a loose, spreadable texture that will cling to the noodles. If it looks separated or oily, you may have added the oil too quickly; instead, add it in a slow stream and use short pulses. Avoid leaving large unblended chunks of pine nuts unless you intentionally want extra crunch.
Taste the pesto and adjust the salt if necessary. Set aside.: Taste will tell you if the pesto needs more salt or acid. The bright citrus should elevate the green notes and the pine nuts should add a soft, toasty undertone. Adjustments here matter because the pesto is a concentrated flavor component. If it tastes flat, add a pinch more salt or a tiny squeeze of citrus. Do not add too much salt at once, as it is harder to fix an over salted sauce.
Place the spiralized zucchini in a colander lined with paper towels. Toss with 1/2 teaspoon of salt and let sit for 10 minutes to draw out excess moisture. Then rinse the zucchini under cold water and pat dry with paper towels.: You will notice beads of moisture forming as the salt draws water from the zucchini . That initial soft hissing of liquid against the paper towel is part of the process. Rinsing removes surface salt so the noodles stay balanced, and patting dry prevents the pan from steaming the noodles into limpness. A mistake to avoid is skipping the rinse, which can leave the dish too salty, or skipping the drying step, which can water down the pesto and make the noodles soggy.
Heat 1 teaspoon of ghee (or olive oil) in a large skillet over medium-high heat. Add the noodles and cook, tossing frequently, until softened but still slightly crisp, about 2 to 3 minutes.: When the skillet is hot the fat will shimmer and release a faint aroma. As you add the zucchini , you should hear a quick, gentle sizzle rather than a loud spatter; that tells you the pan is at the right temperature. Toss frequently so the noodles heat evenly and develop a slight blush of color without turning mushy. Look for tender ribbons that still hold their shape. Overcooking is common here, leaving you with limp strands that have lost texture, so watch carefully and stop once they are tender crisp.
Remove the skillet from heat, stir in the pesto, and toss to combine. Season with additional salt and freshly ground black pepper to taste. Cover the skillet to keep the noodles warm while you prepare the eggs.: Off the heat, the residual pan temperature prevents the pesto from dulling, preserving its bright color and fresh flavor. When you toss, you will see the glossy pesto clinging to each strand and smell an herbaceous, nutty perfume. Add freshly ground black pepper to introduce a warm finish. A common misstep is tossing the pesto in while the pan is scorching hot, which cooks the herbs and flattens the taste; removing from heat is an important step.
In a separate medium skillet, heat the remaining 2 teaspoons of ghee (or olive oil) over medium heat. Fry the eggs to your preference.: As you heat the fat for the eggs , it will begin to shimmer and give off a toasty scent if using ghee . Slide in the eggs and listen for a satisfied sizzle. The whites should set at the edges with a tender center, and the yolks should remain glossy unless you prefer them fully cooked. For runny yolks, cook until whites are set but the yolks still wobble. A pitfall is crowding the pan or using oil that is too hot, which can make the whites tough and bubbly rather than tender.
Divide the noodles between two plates. Top each portion with a fried egg and sprinkle with the remaining tablespoon of toasted pine nuts. Serve immediately.: The final assembly is when textures and temperatures meet. You will see bright green noodles, a warm, glossy egg perched on top, and little flecks of toasted pine nuts adding crunch. Pierce a yolk and watch it silk over the pesto, creating a luscious coating. Serve right away for the best contrast of warm noodles and egg with crunchy nuts. Letting it sit too long will cool the noodles and soften the nuts, losing the contrast that makes this dish so satisfying.