1 cup cold cooked rice, or more to taste
1 egg, or more to taste
2 green onions, sliced, or more to taste
2 teaspoons soy sauce, or to taste
Heat oil in a large skillet over medium-high heat. Spread rice in a flat layer in the skillet; cook until crispy on the bottom, 2 to 3 minutes. Stir egg into rice until scrambled, about 2 minutes more. Sprinkle green onions on top. Season with soy sauce.