Boil the pasta in salted boiling water.
Finely chop onion and garlic.
Heat olive oil in a pan and sauté the garlic and onion.
Add the canned spicy tuna to the pan and sauté together.
Add the cooked pasta to the pan and mix in gochujang (Korean chili paste), soy sauce, etc.
Season with salt and pepper to taste.
Plate and finish with parsley or toppings of your choice.