Cut enoki mushrooms and tofu into bite-sized pieces.
Season the tofu by sprinkling salt over it and let it sit for 10 minutes.
Heat cooking oil in a pan and grill the tofu on both sides until golden brown, then set aside on a plate.
Stir-fry minced garlic in the pan, then add enoki mushrooms and stir-fry together.
Make a sauce by combining soy sauce, sugar, water, and red pepper flakes.
Place the grilled tofu and stir-fried enoki mushrooms in the pan, pour the sauce over them, and let it boil.
When the sauce thickens, finish by drizzling sesame oil and topping with scallions.