Butternut Squash Casserole without canola

1 large butternut squash about 2 pounds * 1 large onion chopped 3 cloves garlic minced, or to taste 1 tablespoons olive oil 1 teaspoon cumin ground 1 teaspoon[...]

3 cups butternut squash, cooked and mashed 1/4 cup butter 1 tablespoon brown sugar 1/4 teaspoon salt 1/8 teaspoon white pepper 1 1/2 tablespoons butter 6 cups[...]