Press the firm tofu between paper towels for 10 minutes to remove excess moisture, then slice into 1-inch thick slabs.
Season the tofu slabs evenly with sea salt, black pepper, and garlic powder.
Heat a grill pan or outdoor grill over medium-high heat and lightly brush with half of the olive oil.
Grill the tofu for 4-5 minutes per side until charred grill marks appear and the edges are crisp.
While tofu grills, peel and segment the orange, removing any white pith.
In a large bowl, whisk together the remaining olive oil and lime juice to create a light dressing.
Toss the mixed greens, orange segments, and shelled edamame in the dressing until well coated.
Slice the grilled tofu into strips and place on top of the salad.
Sprinkle the entire dish with hemp seeds for a final boost of protein and crunch.