Spicy halibut with ratatouille pairs flaky, paprika-seared white fish with slow-cooked eggplant, zucchini, peppers, and tomatoes. Cooking the fish separately gives it a golden crust while the vegetables become tender and deeply savory.
Prep: 20 min · Cook: 5 hr · Total: 5 hr 30 min
Spicy Halibut with Ratatouille
Ingredients
Instructions
- Heat 1 tablespoon olive oil in a large skillet over medium heat. Add the onion and cook for 5 minutes. Stir in the garlic for 30 seconds, then transfer the mixture to a 5- to 6-quart slow cooker.
- Add the eggplant, zucchini, bell peppers, crushed tomatoes, tomato paste, broth, thyme, oregano, ½ teaspoon smoked paprika, ¼ teaspoon hot paprika, 1 teaspoon salt, ½ teaspoon black pepper, and the remaining olive oil. Stir gently.
- Cover and cook on low for 4 to 5 hours or on high for 2 to 3 hours, until the vegetables are tender but still hold their shape.
- Pat the halibut dry. Season it with the remaining smoked paprika, hot paprika, salt, black pepper, and the lemon zest.
- When the ratatouille is ready, heat a large nonstick skillet over medium-high heat. Add a thin film of oil, then sear the halibut for 3 to 4 minutes on the first side.
- Turn the fillets and cook for 2 to 4 minutes more, until opaque, easily flaked, and 145°F in the thickest part. Remove from the heat and drizzle with lemon juice.
- Stir the parsley into the ratatouille. Divide it among four shallow bowls, top with the halibut, and serve immediately.
Estimated per serving: 390 calories · Protein 38 g · Fat 17 g · Carbs 23 g · Fiber 8 g · Sodium 610 mg
Why This Recipe Works
- Separate cooking: keeps the halibut flaky while the vegetables develop slow-cooked flavor.
- Two paprikas: add smoky depth and adjustable heat.
- Firm vegetable pieces: preserve the rustic texture of ratatouille.
- Lemon at the end: brightens both the fish and tomato sauce.
Choosing Halibut
Look for thick, evenly cut fillets with moist, translucent flesh and a clean ocean scent. Similar-size portions finish at the same time. Frozen halibut is an excellent option when thawed slowly and dried well.
Helpful Tips
- Use a wide fish spatula when turning the fillets.
- Do not move the fish until a crust has formed.
- Begin checking thin portions early.
- Cook the ratatouille uncovered briefly if it seems watery.
Variations
- Mild: omit the hot paprika.
- Other fish: substitute cod, haddock, or sea bass.
- Mediterranean: add olives or capers at the end.
- Herby: finish with basil in addition to parsley.
Serving Suggestions
Serve with crusty bread, couscous, rice, or creamy polenta. A simple arugula salad with lemon makes a fresh side.
Storage and Reheating
Store the fish and ratatouille separately for up to 2 days. Reheat the vegetables on the stove and gently warm the fish so it does not dry out.
Frequently Asked Questions
Can I use frozen halibut?
Yes. Thaw it overnight in the refrigerator, then pat it very dry before seasoning and searing.
What fish can replace halibut?
Cod, haddock, sea bass, or another firm white fish works well. Adjust the cooking time for the thickness of the fillets.
How do I know when halibut is done?
The center should be opaque and flake easily. For food safety, check that the thickest part reaches 145°F.
Can the fish cook in the slow cooker?
It can, but pan-searing gives better color and texture. Cooking fish separately also makes it easier to avoid overcooking.
How spicy is this recipe?
It is moderately spicy. Reduce the hot paprika to a pinch for mild heat, or add more cayenne for a stronger kick.
How should I store leftovers?
Refrigerate fish and ratatouille in separate airtight containers for up to two days. Reheat the vegetables gently and warm the fish only until hot.
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Prepared with AI assistance. The supplied cookbook page was used as inspiration; ingredient amounts, timing, directions, and explanatory text were independently developed and edited into an original recipe. Nutrition is an estimate.
Featured image: AI-generated food photography.