Preheat the oven to 400ºF and line two baking sheet with parchment paper.
Add the tofu cubes to a bowl and gently toss with the tamari. Then add the flour and gently toss until the tofu cubes are well coated.
Meanwhile, Place the vegetables in a separate mixing bowl and drizzle with the balsamic vinegar and Italian seasoning. Let the vegetables marinate while preheating the oven.
Arrange the coated tofu cubes and veggies on separate prepared baking sheets. Bake each sheet pan for 30 minutes, flipping halfway through.