Butternut Squash with walnuts

1 x Onion 1 x Clove garlic 1 piece ginger root , 1-inch long 3 lb Butternut squash 3/4 lb Granny Smith apples 1/2 x Lemon 3 Tbsp. Butter Salt and pepper 1[...]

2 tablespoons unsalted butter 1 small onion , chopped 1 teaspoon rosemary , chopped 1 small butternut squash, peeled, seeded and cut into chunks 6 cups[...]