Butternut Squash and Parmesan Soup without lasagna

3 cups butternut squash peeled and cut into 1/2 inch cubes * 1 x nonstick cooking spray * 1/2 teaspoon salt divided 1 1/4 teaspoons olive oil 1 1/4 cups onion[...]

3 cups cubed peeled butternut squash (1/2-inch cubes) cooking spray 1/2 teaspoon salt , divided 1 teaspoon olive oil 1 cup chopped onion 1 garlic clove ,[...]