Preheat your oven to 425°F and line a large baking sheet with parchment paper.
In a medium bowl, combine the steak cubes with minced garlic, 2 tablespoons olive oil, rosemary, thyme, black pepper, and salt. Toss until the meat is evenly coated and set aside to marinate while you prepare the squash.
Spread the cubed butternut squash on the prepared baking sheet in a single layer, ensuring pieces don't touch. Drizzle with olive oil and sprinkle with smoked paprika, garlic powder, salt, and pepper.
Roast the butternut squash for 25-30 minutes, flipping halfway through, until the edges are golden brown and caramelized.
While the squash roasts, heat a large cast-iron skillet over medium-high heat until very hot.
Add the marinated steak cubes in a single layer, working in batches if needed to avoid crowding. Sear for 2-3 minutes per side until a golden crust forms and the internal temperature reaches 130°F for medium-rare.
Remove the steak from heat and let it rest for 5 minutes while you assemble the bowls.
Divide the cooked quinoa or rice among four bowls. Top each with mixed greens, roasted butternut squash, and sliced steak.
Finish each bowl with crumbled feta cheese, toasted pumpkin seeds, and a drizzle of balsamic glaze.