Slow Cooker Tuna Arrabiata

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recipe by Octopus Publishing

  • Time icon
    Total Time
    5hrs 20mins
  • Serves icon
  • Calories icon
based on 1 ratings

Canned tuna is the hero ingredient in this tasty slow-cooked pasta sauce. Rich and smoky with a hint of heat, this hassle-free recipe will cook while you're at work. Just add pasta when you get home and serve.

recipe updated Mar 19, 2020


  • Onion icon
    1 (about 140 g)
  • Garlic clove icon
    Garlic clove
    2 (about 12 g)
  • Red bell pepper icon
    Red bell pepper
    1 (about 150 g)
  • Fresh chili icon
    Fresh chili
    ½ tsp (about 0.4 g)
  • Canned tuna icon
    Canned tuna
    198.62 g (about 1 ¼ cups)
  • Parmesan cheese icon
    Parmesan cheese
    as needed
  • Olive oil icon
    Olive oil
    1 tbsp (about 13.65 g)
  • Smoked paprika icon
    Smoked paprika
    1 tsp (about 2.15 g)
  • Canned chopped tomatoes icon
    Canned chopped tomatoes
    368.88 g (about 1 ½ cups)
  • Fish stock icon
    Fish stock
    ¾ cup (about 158.4 g)
  • Salt & pepper icon
    Salt & pepper
    as needed
  • Water icon
    as needed
  • Salt icon
    as needed
  • Spaghetti icon
    340.5 g (about ½ cup)
  • Fresh basil icon
    Fresh basil
    as needed


  • kCook icon Wooden spoon
  • kCook icon Slow cooker
  • kCook icon Medium cast iron skillet
  • kCook icon Large saucepan
  • kCook icon Slow cooker bowl

Step preview

  1. Heat olive oil to a clean medium cast iron skillet
  2. Add onion to the medium cast iron skillet
  3. Fry until light golden - 5 min
  4. Stir in garlic clove, red bell pepper, smoked paprika and fresh chili to the medium cast iron skillet
  5. Cook - 2 min
  6. Mix in canned chopped tomatoes to the medium cast iron skillet
  7. Mix in fish stock to the medium cast iron skillet
  8. Season with salt & pepper
  9. Boil
  10. Transfer content of medium cast iron skillet to slow cooker bowl
  11. Add canned tuna to the slow cooker bowl
  12. Cover
  13. Cook in slow cooker - 4 hr 30 min, low heat
  14. Add water and salt to a clean large saucepan
  15. Boil
  16. Add spaghetti to the large saucepan
  17. Cook until tender - 8 min
  18. Drain
  19. Add pasta to slow cooker bowl
  20. Stir
  21. Serve
  22. Garnish with parmesan cheese and fresh basil
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