Lemon Pepper Tilapia steams inside individual foil packets with lemon-pepper seasoning, fresh lemon juice, and a full tablespoon of butter per fillet. The slow cooker turns out six tender, flaky portions with almost no effort. Each serving has 19.6g of protein and 2.1g of carbs.
Ingredients
- 6 wild-caught Tilapia fillets (approx. 24 oz / 680g total)
- 4 tsp (0.67 oz / 19g) lemon-pepper seasoning, divided
- 6 tbsp (3 oz / 85g) unsalted butter, divided into 1 tbsp portions
- 0.5 cup (4 oz / 113g) fresh lemon juice
Step-by-Step Directions
- Cut six large pieces of aluminum foil and lay them flat on a clean workspace. Place one tilapia fillet directly in the center of each piece of foil. Season each fillet evenly with the lemon-pepper seasoning, drizzle with the fresh lemon juice, and top each piece of fish with exactly 1 tbsp (0.5 oz / 14g) of butter.
- Gently fold and crimp the edges of the aluminum foil over the fish to form tightly sealed packets. Place the six foil packets into a 6-quart slow cooker. Secure the lid and cook on the "High" setting for 3 hours, or until the fish reaches an internal temperature of 145°F (63°C).
- Carefully remove the hot foil packets from the slow cooker using tongs. Gently open the crimped edges to release the steam and check that the tilapia is tender and flakes easily with a fork. Serve immediately while hot.
Nutritional Information (Per Serving)
- Calories: 201 kcal
- Carbohydrates: 2.1 g (0.07 oz)
- Protein: 19.6 g (0.69 oz)
- Fat: 12.9 g (0.46 oz)
Chef's Pro Tips
To ensure your Slow Cooker Lemon Pepper Tilapia turns out restaurant-quality every single time, keep these expert culinary tips in mind:
- Completely Thaw the Fish: If using frozen fillets, make sure to thaw them completely and pat them dry with a paper towel before seasoning. Excess moisture will water down the butter and lemon juice, effectively boiling the fish instead of gently steaming it in the rich sauce.
- Leave Room for Steam: When crimping your foil packets, don't wrap the tilapia too tightly. Leave a little bit of empty space inside the packet to allow the steam to circulate, which ensures perfectly even cooking.
- Add Aromatic Extras: Elevate the flavor profile by laying down a bed of thinly sliced fresh lemons or adding a sprig of fresh dill or parsley inside the foil packet before sealing. The aromas will infuse directly into the fish as it cooks.
- Avoid Overcooking: Slow cookers can vary greatly in temperature. Start checking your fish at the 2.5-hour mark if your slow cooker runs hot. The fish is done the moment it turns opaque and flakes easily with a fork.
Frequently Asked Questions (FAQ)
Can I cook this Slow Cooker Lemon Pepper Tilapia on the "Low" setting? Yes, you can absolutely cook this on the "Low" setting if you need it to sit a bit longer. Set it for 4 to 5 hours on low, but always check for that flaky, opaque center to ensure it is fully cooked.
Do I need to add water to the bottom of the slow cooker? No water is needed in the slow cooker insert. The aluminum foil tightly traps the moisture, butter, and lemon juice inside each individual packet, creating the perfect steaming environment for the fish.
Can I use other types of fish for this recipe? Definitely! While this recipe is optimized for tilapia, this exact foil packet method works beautifully with other mild, white fish like cod, haddock, or halibut. Just keep an eye on the cooking time, as thicker cuts of fish might require an extra 20 to 30 minutes.
What side dishes pair well with Lemon Pepper Tilapia? Because the fish is light and citrusy, it pairs perfectly with starch and green vegetables. Serve it alongside steamed asparagus, garlic green beans, or over a bed of quinoa or jasmine rice to soak up that delicious lemon-butter sauce left in the foil packet.
Pro Tips
- Thaw frozen fillets completely and pat them dry with a paper towel before seasoning. Excess moisture waters down the butter and lemon juice and boils the fish instead of gently steaming it.
- Don't wrap the foil packets too tightly. Leave a little headspace inside so steam can circulate and the tilapia cooks perfectly evenly.
- Start checking at the 2.5-hour mark if your slow cooker runs hot. The fish is done the moment it turns opaque and flakes easily with a fork.
- For extra aroma, lay thin slices of fresh lemon or a sprig of fresh dill or parsley inside each packet before sealing. The steam infuses the flavor right into the fish.
- Season each fillet evenly with the divided lemon-pepper and top it with exactly 1 tablespoon of butter so all six packets cook the same way.
Frequently Asked Questions
Can I use a different fish fillet?
Any mild white fillet works in the same foil-packet method. Keep the pieces a similar thickness and check early, since thinner fillets finish faster than tilapia.
How do I keep the tilapia from getting watery?
Thaw and pat the fillets completely dry before seasoning, and leave headspace in each foil packet so the steam circulates instead of pooling around the fish.
Can I assemble the foil packets ahead of time?
Yes. Season the fillets, add the lemon juice and butter, and seal the packets a few hours ahead. Keep them chilled and add a little extra cooking time straight from the fridge.
Is lemon pepper tilapia keto?
Each serving has 2.1g of carbs and 19.6g of protein, with 12.9g of fat from the butter and the sauce in the packet.
Recipe card below.
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Ingredients
Method
- Cut six large pieces of aluminum foil and lay them flat on a clean workspace.
- Place one tilapia fillet directly in the center of each piece of foil.
- Season each fillet evenly with the lemon-pepper seasoning, drizzle with the fresh lemon juice, and top each piece of fish with exactly 1 tbsp (0. 5 oz / 14g) of butter.
- Gently fold and crimp the edges of the aluminum foil over the fish to form tightly sealed packets.
- Place the six foil packets into a 6-quart slow cooker. Secure the lid and cook on the High setting for 3 hours, or until the fish reaches an internal temperature of 145°F (63°C).
- Carefully remove the hot foil packets from the slow cooker using tongs. Gently open the crimped edges to release the steam and check that the tilapia is tender and flakes easily with a fork.
- Serve immediately while hot.
- Add Aromatic Extras: Elevate the flavor profile by laying down a bed of thinly sliced fresh lemons or adding a sprig of fresh dill or parsley inside the foil packet before sealing. The aromas will infuse directly into the fish as it cooks.
