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The main ingredient may surprise you, but Spaghetti Napolitan is an easy Japanese-style pasta that comes together from just a handful of pantry staples.

Spaghetti Napolitan

Spaghetti Napolitan (スパゲッティナポリタン) is a Japanese spaghetti dish made with cured meat, green peppers, and ketchup. It's a quick fix from pantry ingredients with a mouthwatering contrast between the savory meat and the agrodolce sauce.
Course Entree
Cuisine Japanese
Keyword pasta
Level Beginner
Main Ingredient Pasta, Pork
Diet Dairy-Free
Prep Time 5 minutes
Cook Time 12 minutes
Total Time 12 minutes
Servings 2 portions
Calories 869kcal


  • 220 grams spaghetti
  • 2 teaspoons olive oil
  • 120 grams thick-cut bacon 5 strips, chopped into 1/2-inch strips
  • 70 grams button mushrooms 5 mushrooms, sliced
  • 70 grams mild green pepper like Anaheim chilies, sliced into rings
  • 70 grams onion 1/2 small onion, sliced
  • cup ketchup
  • 1 tablespoons butter
  • 2 teaspoons soy sauce
  • ½ teaspoon black pepper


  • Boil the spaghetti in a pot of well-salted water (1 tablespoon per 5 cups of water) for 1-2 minutes less than what the package says.
    Boiling spaghetti in salted water for making Napolitan.
  • About 6 minutes before the pasta is ready, add the olive oil onions and mushrooms to a preheated frying pan over medium heat. Saute until the vegetables just start to brown.
    Sauteed onions and mushrooms.
  • Add the bacon and continue sauteing until bacon just starts to render out some fat.
    Bacon mushrooms and onions in a frying pan.
  • Add the green peppers, and when the pasta has about a minute left to go, add the ketchup, along with a ladle of boiling liquid from the pasta.
    Adding ketchup to a pan with green peppers, bacon, mushrooms and onions for making Japanese spaghetti.
  • Add the soy sauce, butter, and black pepper and stir this together to emulsify the butter.
    Spaghetti Napolitan sauce simmering in a frying pan.
  • When the spaghetti is done, add it to the sauce and finish cooking it in the sauce. If the noodles start sticking together, add more of the pasta's boiling liquid to loosen the sauce.
    Transferring boiled spaghetti to a pan with the sauce for making Japanese Napolitan.
  • When the pasta is cooked to your liking, serve the Spaghetti Napolitan with some grated parmesan cheese.
    Finished closeup of Spaghetti Napolitan.


Calories: 869kcal | Carbohydrates: 111g | Protein: 25g | Fat: 35g | Saturated Fat: 13g | Cholesterol: 55mg | Sodium: 1634mg | Potassium: 779mg | Fiber: 6g | Sugar: 24g | Vitamin A: 585IU | Vitamin C: 11mg | Calcium: 44mg | Iron: 2mg