Tuna and spinach pasta with tomato sauce

Slice the onions into thin slices.

Put A into a frying pan and heat. When it becomes fragrant, add the onion and fry, then add B and fry briefly, then add the white wine to bring out the aroma

Quickly boil the spinach, squeeze out the water, roughly chop it, and add it to the frying pan in step 2 along with the tomato sauce

Boil the spaghetti until firm (1 minute before the recommended cooking time. In this case, it's about 2 minutes and 30 seconds)

Add the boiled spaghetti to a frying pan, drizzle with olive oil and coarsely ground black pepper, then transfer to a plate and sprinkle with parsley