Wash and clean the zucchini and cut the flesh around the core into long thin strips (noodles) using a julienne slicer. Peel and finely chop the ginger. Crumble the tofu. Halve the lime, squeeze the juice.
Peel and chop the garlic.
Heat 1 tablespoon of oil in a large frying pan and fry the tofu for approx. 5 minutes, turning it over. After about 3 minutes add ginger, garlic and sesame seeds. Season with soy sauce. Remove from the pan and keep warm.
Wipe out the pan and heat 2 tablespoons of oil in it. Steam zucchini strips for approx. 4 minutes while turning until al dente. Season to taste with salt, pepper and lime juice. Arrange noodles and tofu. Sprinkle with fried onions.