The simplest cozy and delicious autumn meal. Roasted until perfectly tender and caramelized, the squash is filled with a cheesy, savoury mix of Italian sausage, onion, garlic, Parmesan and fresh thyme.
Place squash halves cut sides up on a baking sheet and brush the entire open surface of each half with olive oil. Season with salt and pepper and roast for 30 minutes.
While the squash is roasting, brown the sausage in a skillet over medium heat breaking it up as you go, about 5-7 minutes. Add the onion to the pan and continue to cook for another 5 minutes until the onion has softened.
Turn off the heat and stir in balsamic vinegar, garlic, Parmigiano Reggiano and thyme leaves.
Remove squash from oven and fill each half with the sausage mixture, then roast for another 20 minutes or so until the squash is tender when pierced with a fork.
Top with more Parmigiano Reggiano and thyme leaves as desired. Serve hot.
Notes
Squash: If you don’t have acorn squash, you can use similarly sized spaghetti or kabocha squash. The cooking time may vary a little, but you’ll know they’re done once they’re tender and pierce easily with a fork. To cut the squash, hold it steady on its side with one hand, slice from top to bottom through the stem then scoop out all the seeds.Olive oil: Substitute butter for richer flavour.Italian sausage: I like spicy fennel sausage.Balsamic Vinegar: Miso or Worcestershire sauce would add similar depth of flavour.Thyme: If you don’t have or prefer not to cook with thyme, substitute fresh sage or rosemary, both of which pair well with squash.Parmigiano Reggiano: Freshly grated Parmigiano Reggiano is best suited for roasting. Both feta and mozzarella would also work well here.Storage: Leftovers will keep well in the fridge for 3-4 days. To reheat, return to baking sheet and warm in the oven at 350ºF (177ºC) until heated through.