3 butternut squash with and pumpkin seed pesto Recipes

butternut squash or 1 1/4 kg kabocha squash or 1 1/4 kg pumpkin, sunflower oil, butter (the original recipe calls for 40), onion, chopped, shelled unsalted pumpkin seeds (from supermarkets and health food stores), fresh coriander (leaves and stems ), green chili , deseeded and finely chopped, fat garlic clove, crushed, olive oil (1/4 cup), parmesan cheese, finely grated (1/3 cup), sour cream, coriander, to garnish (optional)

butternut squash, peeled and cubed (1/2 inch; about 6 cups), olive oil, divided, green (hulled) pumpkin seeds (pepitas; not toasted), cilantro sprigs, fresh lemon juice