Gather all ingredients and equipment.
Preheat oven to 375°F (190°C).
Toss cubed squash with 1 teaspoon of oil, 1/8 teaspoon salt, and 1/4 teaspoon black pepper. Spread the cubes on a parchment lined sheet pan in a single layer. Roast squash until the edges are caramelized and the cubes can be easily pierced with a fork, about 30 – 40 minutes.
Heat remaining oil in a large sauté pan over medium heat and add onions. Stir occasionally for about 5-6 minutes until onion is translucent.
Add the garlic and farro. Sauté 2 minutes.
Add the wine and continue to cook, stirring occasionally, until most of the liquid has evaporated.
Add the bay leaf then add the stock ½ cup at a time, stirring continuously until all of the stock has been added.
Add the remaining salt and pepper.
Bring liquid to a boil. Reduce heat to low, and simmer, uncovered, stirring occasionally until the farro is tender but still chewy: about 25 minutes.
When the farro is cooked, gently stir in the roasted squash, parmesan cheese, and sage leaves.
