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Dinner · Part 1 of 3: Ingredients

Slow Cooker Cod and Zucchini Colombo for an Easy Dinner

A slow cooker filled with cod fillets, zucchini, and a creamy coconut colombo sauce.
Prep
Cook
Total
Serves
4

Master the art of hands-off cooking with this aromatic and tender cod and zucchini colombo. This dish combines the delicate texture of white fish with the vibrant, earthy notes of colombo spice and the creamy richness of coconut milk, creating a sophisticated dinner that requires very little effort to assemble.

The colombo spice blend, a staple in Caribbean cuisine, provides a unique depth of flavor that pairs perfectly with mild white fish.

By using a slow cooker, the fish remains incredibly moist while the zucchini softens just enough to absorb the fragrant sauce. This recipe is designed for those who appreciate a refined meal without spending hours in the kitchen.

It is an ideal solution for busy evenings when a warm, comforting dinner is needed with minimal cleanup and maximum flavor impact. Whether serving for a casual weeknight dinner or a relaxed weekend meal, this cod dish is sure to become a reliable favorite in the recipe collection.

Ingredients

Makes 4 servings · serves 4

main

  • 1.5 lb cod fillets
  • 2 medium zucchini, sliced
  • 1 medium yellow onion, sliced

spices

  • 2 tbsp colombo spice powder

sauce

  • 1 cup full-fat coconut milk
Contains: fish

Why this recipe works

The slow cooker environment creates a gentle, moist heat that is perfect for delicate proteins like cod. By cooking the fish submerged in a flavorful coconut milk and spice liquid, the flesh remains tender and succulent rather than drying out, which can often happen with high-heat cooking methods like pan-searing or baking.

Ready to start cooking right away??? Jump to Part 2 ? Step-by-Step Method ?

The combination of colombo spice and coconut milk creates a self-basting sauce that intensifies as it cooks.

As the zucchini and onions release their natural moisture, they mingle with the spices, resulting in a rich, velvety sauce that coats every bite of the fish perfectly, ensuring a balanced and deeply flavorful final dish.

Notes and substitutions

Cod is the preferred protein for this recipe due to its clean, mild flavor and ability to absorb the spices, but other firm white fish varieties work well too.

Ensure the fish is fresh and properly thawed if using frozen fillets. The thickness of the fillets will determine the exact cooking time, so keep an eye on the internal temperature.

A standard slow cooker is the only equipment needed for this recipe. The key to success is keeping the lid closed during the cooking cycle to prevent heat loss. If the sauce appears too thin after cooking, it can be gently reduced in a separate saucepan over medium heat for a few minutes before serving.

  • cod fillets: haddock, pollock, or any other firm white fish fillet
  • colombo spice: mild curry powder or a blend of turmeric, cumin, and coriander

Equipment

  • slow cooker
  • cutting board
  • chef knife
  • measuring cups
  • measuring spoons

Coming up in Part 2: the method

  1. Layering the ingredients · 1 stepPrepare the slow cooker base
  2. Adding the sauce and seasoning · 1 stepAdd vegetables and aromatics
  3. Slow cooking the fish · 1 stepAdd liquid and cook

Up next · Part 2 of 3

3 steps · 3 h of cooking · what to look for at each stage

Step-by-step instructions (Part 2)