No rice Risotto

Thanks again to the D&C for another recipe I must try.  You can find the full article here:
http://www.democratandchronicle.com/apps/pbcs.dll/article?AID=2011110040312

Risotto-Style Butternut Squash

Any dry, non-stringy winter squash variety will work, such as Hubbard, buttercup, kabocha, red kuri or cooking pumpkins. Avoid acorn, delicata or spaghetti squashes as they are too wet and won't absorb enough stock.

1 large or 2 medium butternut squashes, peeled and seeded and cut in to chunks
1 cup chicken or mushroom stock
½ to 1 cup whole milk
1 tablespoon olive oil
1 tablespoon butter
1 large onion, diced
1 teaspoon grated lemon zest (optional)
¼ cup loosely packed chopped fresh sage
Grated Parmesan cheese for garnish