Preheat oven to 400 degrees Fahrenheit and line a baking sheet with parchment paper.
Toss the cubed butternut squash with 1 tablespoon olive oil, salt, and pepper; spread in a single layer on the baking sheet and roast for 25 minutes or until tender.
In a medium saucepan, combine quinoa and water; bring to a boil, then cover and reduce heat to low, simmering for 15 minutes until liquid is absorbed.
Season steak with garlic powder, salt, and pepper on both sides.
Heat remaining olive oil in a cast iron skillet over medium-high heat and sear the steak for 3 to 4 minutes per side until desired doneness is reached.
Transfer steak to a cutting board and allow to rest for 5 minutes before slicing into thin strips across the grain.
Divide the cooked quinoa and baby kale among four bowls.
Top each bowl with equal portions of roasted butternut squash and sliced steak.
Drizzle with balsamic glaze before serving or storing for meal prep.