Preheat oven to 400 F. (200 C.). Carefully slice 3 acorn squash in half and remove the seeds. Slice a tiny bit off the bottoms so that they lay flat.
Lay each half on a foil-lined baking sheet, brush with olive oil, sprinkle with salt and pepper, and drizzle with a little honey (optional). Roast acorn squash for 30-40 minutes, until the tops are slightly brown.
First check to be sure your brand of farro has the same broth amount and cook time. While squash roasts, add 1 cup vegetable broth to a pot. Bring to a boil, and add ½ cup farro. Reduce heat, and simmer for 20 minutes, stirring occasionally. If it finishes before your veggies are done, simply give it a stir and place a lid on top until they’re done.
Add 1½ tbsp. olive oil to a sauté pan and sauté sliced mushrooms until brown - about 5-7 minutes. Sprinkle with garlic powder and sauté for 1 minute more and set aside. If you have a large pan, you can sauté onions, garlic and mushrooms at the same time. Just keep them separate, as they have different cook times.
Sauté diced onions in 1½ tbsp. olive oil until lightly brown, then add 1 tsp. more olive oil and sauté minced garlic and thyme, no longer than 1-2 minutes. Set aside - you can combine with mushrooms.
Sauté chopped kale with 2 tbsp. olive oil for 3-5 minutes until wilted. Sprinkle with garlic powder and fresh pepper, give it one more push around with a spatula and remove into container with mushrooms, onions and garlic.
Once farro finishes, add 1 tbsp. soy sauce and grated parmesan and stir. Mix in sautéd vegetables.
When acorn squash is done roasting, brush with melted butter, spoon farro into each squash and serve.