Fish in the slow cooker? Of course. Your favorite fish slow cooks with tomatoes and vegetables in this easy low-carb, paleo, and whole30 recipe.
The fish. I like to use a white fish with this recipe like tilapia, cod or haddock. What you see here is tilapia. Salmon is another fish that cooks wells with tomatoes in the slow cooker. Fish doesn’t cook long in the slow cooker regardless of which type you use. This entire dish is done in a couple of hours. I cut my fish into pieces to make it fit in the slow cooker. If your fish fits in the slow cooker without having to cut it up, leave it whole.
I kept the seasoning simple – salt, pepper, and ‘herb’. I kept herb generic so you can use your favorite herb. I went with rosemary. Other suggestions are thyme or basil.
While this is made in the slow cooker, this is NOT a set-it-and-forget-it recipe. I repeat – you cannot cook this all day. The fish will overcook and turn to mush. Total cooking time is short. It all depends on your slow cooker (every slow cooker heats different) and your personal preference. Meaning, how do you like your fish? I prefer mine well done so I left mine in a little longer than normal. Also if you get creative and add more vegetables (which I hope you do), this might also increase cooking time. If you want to get this 100% right the first time then I suggest you don’t venture too far away from your slow cooker and maybe check it halfway through cook time. I know normally you’re not supposed to take the lid off but in this case it will be okay.
This cooked in a little over an hour on HIGH for me. Even though I cooked my fish well-done, it still came out super moist…the power of the slow cooker.
Slow Cooker Fish & Tomatoes VIDEO:
Slow Cooker Fish & Tomatoes (Low-Carb, Paleo, Whole30)
- Prep Time: 10 mins
- Cook Time: 2 hours 30 mins
- Total Time: 2 hours 10 mins
- Yield: 4 servings 1x
- 1 lb fish
- 1 bell pepper, diced
- 1 small onion, diced
- 1 garlic cloves, minced
- 15 ounces diced tomatoes
- 1 tsp dried herbs
- 1/3 cup low-sodium broth (vegetable or chicken)
- 1/2 tsp salt
- 1/4 tsp pepper
- Add onion, bell pepper, broth, tomatoes, garlic to the slow cooker. Stir to mix well.
- Add fish on top of tomato mixture. Sprinkle salt, pepper, and herbs on top of fish. Pour broth on top.
- Cook HIGH 1-2 hours or 2-4.
My Slow Cooker Italian Herb Salmon recipe is another fish dish that can be made in the slow cooker!
I used a 2.5-quart slow cooker but this recipe can easily be doubled to feed a larger crowd if you have a 6-quart slow cooker. Serve this over cauliflower rice, mashed cauliflower, spaghetti squash, over zoodles, or even in lettuce wraps to keep this low-carb, paleo, or whole30. If you’re not following one of those particular lifestyles, then other serving suggestions include over white or brown rice or pasta.
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