Preheat oven to 350F (176C).
Dry the tofu block using paper towels, gently pressing them between your hands to release all the liquid. Cut tofu in ¼ inch (0.5cm) dices.
Whisk together tamari, sesame oil, ginger, tangerine zest, Tabasco, salt, and green onions in a small bowl. Add the diced tofu, gently stir to coat, and let it sit, covered, in the fridge for two hours (or overnight).
You will make the wonton cups in two batches. Brush two mini muffin baking pans with canola oil. Brush both sides of each wonton wrapper lightly before placing them in the mini muffin baking pan. Brushing the wrappers with oil will make them slightly more flexible and help to prevent them from cracking when handled to fit into the mini muffin cavities. Bake until golden, about 6 to 8 minutes. Be careful because they burn quickly. Let them cool for 15 minutes on a cooling rack. Repeat the process to prepare the second wonton cup batch.
Assemble the cups right before serving them. Cut the avocado in ¼ inch (0.5cm) dices into the lemon juice. Stir gently to coat. Place the cups into the serving tray. Using a small spoon, fill the cups with a couple of marinated tofu dice, top it with avocado dice and sprinkle the toasted sesame seeds. Serve immediately.