Fill a large stockpot with 8 cups of water and bring to a boil.
Peel the butternut squash and chop it into 2-inch cubes.
Boil the squash for 10-12 minutes until tender and drain. Lay on paper towels in a single layer to dry out.
In a bowl, blender or using a small food processor, blend the ricotta, half of the parsley, one (1) tablespoon thyme/chives, roasted garlic cloves and a few glugs of olive oil to a smooth puree. Taste and season with lemon zest, lemon juice, salt and pepper. This will be the “bed” of the dish.
In a small bowl, combine the roasted walnuts with chopped parsley, thyme, fleur de sel and a bit of olive oil to create a crunchy topping.
In a large heavy-bottomed skillet over med-high heat, heat 2 tablespoons of grapeseed oil until shimmering but not smoking
Add squash to the skillet and sautée until golden brown on the largest sides. Remove from heat and season with salt and pepper.
On warm plates, serve a few tablespoons of the herbed ricotta and create a bed/nest for the squash. Add the squash on top and garnish with walnut crumble, more fresh herbs, and a glug of olive oil. Enjoy immediately.