Drain the extra-firm tofu and press it between paper towels for 10 minutes to remove excess moisture, then cut into 1-inch cubes.
Rinse and drain the canned chickpeas, patting them dry to ensure they crisp up during cooking.
Heat the toasted sesame oil in a large non-stick skillet or wok over medium-high heat.
Add the tofu cubes to the skillet in a single layer and sear for 5-6 minutes, turning occasionally until all sides are golden brown.
Toss in the sliced bell peppers and chickpeas, sautéing for another 4-5 minutes until the peppers are tender-crisp.
Stir in the grated ginger, minced garlic, red pepper flakes, sea salt, and black pepper, cooking for 1 minute until fragrant.
Pour the low-sodium tamari over the mixture and sprinkle with nutritional yeast, tossing everything together until the tofu and vegetables are evenly coated and glazed.
Remove from heat and serve immediately while the peppers are bright and the tofu is warm.