Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Press the tofu for 15 minutes to remove excess moisture, then cut into 1-inch cubes.
Peel and dice the beets into 1/2-inch cubes.
Toss the tofu and beets with olive oil, sea salt, and black pepper directly on the baking sheet.
Roast for 25-30 minutes, flipping halfway through, until the tofu is golden and the beets are tender.
While roasting, whisk together the tamari, sesame oil, maple syrup, minced ginger, and minced garlic in a small bowl.
Remove the tray from the oven, drizzle the ginger glaze over the tofu and beets, and toss to coat evenly.
Return the tray to the oven for 5 additional minutes until the glaze is sticky and fragrant.
Serve the roasted mixture over a bed of fresh baby spinach and garnish with sesame seeds.