Pre-heat the oven to 400 degrees and line a baking sheet with aluminum foil.
Cook the cup of farro according to package directions. For mine, I combined it with 2 cups of water and ¼ teaspoon salt in a medium saucepan and brought it to a boil, then reduced the heat to low and let it simmer covered for 30-35 minutes.
Once the farro is started, place the cubed squash in a mixing bowl and drizzle with two teaspoons of the olive oil. Stir to coat. Then add ¼ teaspoon of salt, 1/8 teaspoon of pepper, and 1/8 teaspoon of ground thyme and stir to coat. Transfer the squash to the prepared baking sheet and spread across the surface. Place in the oven to roast at 400 degrees for 25 minutes.
When about 10 minutes remain on the squash and farro, drizzle two teaspoons of the olive oil into a skillet or sauté pan and bring over medium heat. Once the oil is hot, add the onions and stir to coat. Cook for 3-4 minutes, stirring occasionally, until softened. Add the minced garlic, sliced almonds, and dried cranberries and stir to combine. Sprinkle with a little salt and cook for another 2-3 minutes, stirring occasionally until the almonds look a bit golden and the cranberries are plump.
In a mixing bowl (it can be the same one you used for the squash – save yourself some dishes), add the apple cider vinegar, mustard, maple syrup, remaining teaspoon of olive oil, and the remaining ¼ teaspoon of salt, 1/8 teaspoon of pepper, and 1/8 teaspoon of ground thyme. Whisk together until combined.
Transfer the cooked farro to a serving bowl and fluff with a fork. Add the roasted butternut squash and the onion/cranberry mix along with the cup of fresh arugula and the tablespoon of fresh parsley. Stir together to mix. Drizzle the maple mustard dressing you made in step 5 over the top of the other ingredients and then stir/toss to combine with the dressing. Serve warm.