Drain the tofu in a colander or on its side in a bowl to remove excess water.

In a small bowl, combine chopped green onions and minced garlic.

Add soy sauce, sesame oil, sesame seeds, and Korean chile powder to the mixture and stir well.

Cut the tofu cube lengthwise in half, then cut each half into 1/2-inch-thick slices.

Heat vegetable oil in a large skillet over high heat.

Carefully place the tofu slices in the skillet.

Cook until the tofu is slightly browned on the bottom and crispy on the edges, approximately 4 to 5 minutes.

Flip the slices and brown the other side for another 4 to 5 minutes.

Reduce the heat to medium-low and spoon the seasoning mixture over the tofu, distributing it evenly.

Cover the skillet and let the tofu steam for 2 to 3 minutes.

Transfer the seasoned tofu to a plate and serve immediately.