Can I make Slow Cooker Herb-Crusted Cod with Lemon and Garlic ahead?

Yes. Prep the ingredients or cook the full dish ahead, then reheat gently so the texture stays close to freshly made.

What cookware works best?

Use a slow cooker and avoid crowding so the recipe cooks evenly.

How do I know it is done?

Follow the recipe timing, then check the main ingredient for tenderness, bubbling, browning, or safe doneness before serving.

Can I adjust the seasoning?

Yes. Taste near the end and adjust salt, acid, herbs, or heat in small amounts.

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Slow Cooker One-Pot

Slow Cooker Herb-Crusted Cod with Lemon and Garlic

Name: Slow Cooker Herb-Crusted Cod with Lemon and Garlic
Prep time: 10 min
Cook time: 150 min
Total time: 160 min
Yield: 4 servings
Cuisine: Mediterranean
Ingredients: 4 cod fillets (about 6 ounces each), skin removed; 2 tablespoons olive oil; 4 garlic cloves, minced; Zest and juice of 1 lemon; 2 tablespoons fresh parsley, finely chopped; 1 tablespoon fresh dill, finely chopped; 1 teaspoon dried oregano; 1/2 teaspoon salt; 1/2 teaspoon black pepper; 1/4 teaspoon crushed red pepper flakes (optional); 1/2 cup vegetable broth; 1 small onion, thinly sliced; 1 cup cherry tomatoes, halved; 1/2 cup thinly sliced bell peppers (any color)

By PanPotPlates Test KitchenReviewed by PanPotPlates Editorial TeamPublished Apr 8, 2026 · Updated May 11, 2026

Mediterranean 160 mins slowcookeronepotpescatarianfreezablehealthyeasyfamily-friendlyglutenfreedairyfreeweeknightlightflavorfulmediterraneanseafoodfish recipeslow cooker fish

Enjoy a hassle-free, healthy slow cooker recipe with cod fillets encrusted in lemon, garlic, and fresh Mediterranean herbs. This gluten-free, dairy-free pescatarian dish is perfect for an easy weeknight family dinner that's light, flavorful, and nutritious.

Slow Cooker Herb-Crusted Cod with Lemon and Garlic

Prep 10 min

Cook 150 min

Total 160 min

Servings 4

Difficulty easy

Cuisine Mediterranean

Ingredients

Servings 4

4 cod fillets (about 6 ounces each), skin removed
2 tablespoons olive oil
4 garlic cloves, minced
Zest and juice of 1 lemon
2 tablespoons fresh parsley, finely chopped
1 tablespoon fresh dill, finely chopped
1 teaspoon dried oregano
1/2 teaspoon salt
1/2 teaspoon black pepper
1/4 teaspoon crushed red pepper flakes (optional)
1/2 cup vegetable broth
1 small onion, thinly sliced
1 cup cherry tomatoes, halved
1/2 cup thinly sliced bell peppers (any color)

Ingredients for Slow Cooker Herb-Crusted Cod with Lemon and Garlic

Instructions

In a small bowl, whisk together olive oil, minced garlic, lemon zest and juice, parsley, dill, dried oregano, salt, black pepper, and crushed red pepper flakes (if using) to create the herb-lemon garlic crust mixture.
Arrange the sliced onion, cherry tomatoes, and bell peppers evenly in the bottom of the slow cooker to form a flavorful vegetable bed.
Pour the vegetable broth over the vegetables in the slow cooker.
Pat cod fillets dry with paper towels. Evenly coat each fillet on all sides with the herb-lemon garlic mixture.
Place the coated cod fillets carefully on top of the vegetable bed in the slow cooker.
Cover and cook on LOW for 2 to 2 1/2 hours, or until the cod is opaque and flakes easily with a fork. Avoid overcooking to maintain tender, moist fish.
Using a wide spatula, gently lift the cod fillets from the slow cooker and arrange on serving plates. Spoon the cooked vegetables and pan juices over or alongside the fish.
Serve immediately with steamed greens, quinoa, or gluten-free crusty bread for a complete meal.
Store leftovers in an airtight container in the refrigerator for up to 3 days or freeze for up to 1 month.

Slow Cooker Herb-Crusted Cod with Lemon and Garlic cooking in the recommended pan or pot

Tips

Pan Or Pot Required

For this recipe, a slow cooker is the essential cookware that ensures perfectly tender, herb-crusted cod with minimal hands-on time.

Cookware Size Guidance

A 4 to 6-quart slow cooker is optimal for this Slow Cooker Herb-Crusted Cod with Lemon and Garlic .

Cookware Swap Guidance

This recipe is designed for a slow cooker one-pot approach to lock in moisture and deliver tender, flavorful cod with minimal active cooking.

Leftovers Quality

Reheat gently and add a splash of liquid when needed to keep the texture moist and tender.

Frequently Asked Questions

Can I make Slow Cooker Herb-Crusted Cod with Lemon and Garlic ahead?: Yes. Prep the ingredients or cook the full dish ahead, then reheat gently so the texture stays close to freshly made.
What cookware works best?: Use a slow cooker and avoid crowding so the recipe cooks evenly.
How do I know it is done?: Follow the recipe timing, then check the main ingredient for tenderness, bubbling, browning, or safe doneness before serving.
Can I adjust the seasoning?: Yes. Taste near the end and adjust salt, acid, herbs, or heat in small amounts.

Customize this Slow Cooker One-Pot pescatarian recipe by substituting ingredients to suit your diet or availability:

Cod fillets: Swap with other mild white fish like haddock, tilapia, or halibut for similar texture and flavor.
Olive oil: Use avocado or grapeseed oil for a neutral alternative.
Fresh herbs: Substitute parsley and dill with basil, cilantro, or thyme depending on preference and seasonality.
Lemon zest and juice: Lime zest and juice provide a bright citrus twist.
Vegetable broth: Low-sodium chicken or homemade broth can be used to adjust flavor and sodium if not strictly vegetarian.
Bell peppers and cherry tomatoes: Replace with zucchini, yellow squash, or mushrooms for lower-carb or seasonal variations.
Onion: Shallots or leeks offer a milder or sweeter flavor.

These swaps keep the dish healthy, gluten-free, dairy-free, family-friendly, and flavorful while ensuring simple slow cooker preparation and maintaining a weeknight-friendly profile.

Storage and Reheating

Cool Slow Cooker Herb-Crusted Cod with Lemon and Garlic before storing. Refrigerate leftovers in an airtight container for up to 4 days.

Freeze portions for longer storage when the ingredients are freezer-friendly. Reheat gently with a splash of liquid if the dish looks dry.

Read related air fryer guides and cooking tips.

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Slow Cooker Herb-Crusted Cod with Lemon and Garlic

Recipe Details

Ingredients

Instructions