This is a Japanese pasta dish called spaghetti Napolitan. Ketchup is used to flavour the pasta instead of a marinara/tomato sauce. Lighting was poor so the shot I took of the pasta dressed with some green onion for colour was out of focus so you’ll have to use your imagination.
I used fresh hot Italian sausages and mushrooms but the rest of the dish was based on this recipe.
Cooking is Fun ... Really!! 
I like a fusion dish like this
Thank you. Another post I’d forgotten all about until today when it dropped. I started it about a month ago and then just never finished it.
It’s one of 3 Japanese-Western dishes I had planned on making … along with the chicken doria that I posted and a macaroni gratin that I haven’t made yet … dishes served in old fashioned Japanese diners (kissaten).
What an interesting dish, I haven’t seen ketchup used like this but it makes sense. It must have been very tasty.
That touch of ketchup gets transformed into a suprisingly tasty pasta sauce.
Interesting dish, with ketchup adding a different flavor dimension.
There’s a touch of sweetness and the complexity of the different ingredients in ketchup itself gives a nice taste. I’m doing more one and 2 serving recipes these days as I don’t have to cook at the end of a working day. The joys of retirement. 😉
I have been tasting the joys of retirement for years now, but I still work, which saves my sanity, dear friend.