Creating Tortang Tuna with Spinach is straightforward and requires minimal effort. Follow these simple steps to prepare this delightful dish:

1. Prep the Ingredients: Drain the tuna and chop the fresh spinach, onion, and tomato. If you’re using bell pepper, chop that too.
2. Heat the Oil: In a large skillet, heat the cooking oil over medium heat.
3. Sauté Aromatics: Add the finely chopped onion and sauté until translucent. Then add the diced tomato (and bell pepper if using) and cook until softened.
4. Add Spinach: Toss in the chopped spinach and cook until wilted, about 2-3 minutes.
5. Mix Tuna: In a bowl, combine the drained tuna with the sautéed vegetables. Stir well and season with salt and pepper, and soy sauce if desired.
6. Beat Eggs: In another bowl, beat the eggs and mix them into the tuna and vegetable mixture.
7. Cook the Tortang: Pour the mixture back into the heated skillet. Spread it evenly and cook for 5-7 minutes on one side until golden brown. Carefully flip to cook the other side, using a plate if necessary for easy turning.
8. Finish Cooking: Cook for another 5-7 minutes until both sides are golden and the eggs are set.
9. Serve Warm: Once cooked, remove from the skillet and let cool slightly before slicing into wedges.