Bring a large pot of salted water to a boil.

Prepare a cold-water bath in your sink. Soak the dandelion greens in the cold water for 5 to 10 minutes, periodically shaking them to loosen any debris. After soaking, remove the greens from the water and rinse them thoroughly under running water for a couple of minutes. Place the bunch of greens on a cutting board and trim about 1 inch (2.5cm) from the bottom of the stems. Chop all the greens into 1-inch (2.5cm) pieces.

In a large skillet, heat 2 tablespoons of olive oil, 1 garlic clove, and the chili (if using) over medium heat. Increase the heat to high and add the sausage. Use a wooden spoon or potato masher to break the sausage into smaller pieces. Stir and cook the sausage until it starts to brown, 2 to 3 minutes. Reduce the heat to medium and continue cooking until the sausage turns golden brown and becomes visibly crispy, 8 to 10 minutes.

Pour in the white wine, stirring to deglaze the pan and scrape up any browned bits from the bottom. Transfer the sausage to a bowl and set aside.

In the same pan, heat 2 tablespoons of olive oil and the second garlic clove over medium heat. Once the garlic turns golden, add the chopped dandelion greens to the pan. Cover the pan and cook the greens for 2 minutes. Season the greens with salt and add the sausage.

Add the garganelli to the boiling water and cook to 3 minutes shy of the package directions. Reserving about 1/4 cup (60ml) of the pasta water, drain the pasta and add to the pan with the greens and sausage. Toss everything together, stirring well and adding some of the reserved pasta water to create a creamy and cohesive sauce.

Sprinkle in the grated Parmigiano, tossing until it mixes well with the other ingredients. Add the Fontina and continue tossing until it is fully combined, using a bit more pasta water if needed to achieve the desired consistency.

Drizzle the dish with the remaining 2 tablespoons of olive oil and give it a final taste test, adjusting the seasoning with salt and freshly ground black pepper as needed. Serve immediately.