Slow Cooker Provençal Mussels with Crushed Tomatoes Tips, FAQ & printable recipe

Tips for success

For a more vibrant flavor, consider adding a small squeeze of fresh lemon juice just before serving. This acidity helps to brighten the overall profile of the tomato sauce and complements the natural sweetness of the mussels.

If you enjoy a bit of heat, a pinch of crushed red pepper flakes can be added at the same time as the herbs de Provence to give the dish a subtle kick that balances the richness of the crushed tomatoes.

Serving this dish with crusty bread is essential, as the tomato broth is incredibly flavorful and perfect for dipping. A simple baguette or sourdough bread toasted with a hint of garlic works wonders. If you are looking for a lighter option, a side of steamed asparagus or a crisp green salad with a light vinaigrette provides a refreshing contrast to the savory, herb-infused tomato sauce and the tender mussels.

Variations

• Spicy Provençal Mussels: Add two tablespoons of chopped fresh chili or a teaspoon of red pepper flakes to the tomato base before cooking to introduce a pleasant heat that complements the herbal notes.
• Creamy Tomato Mussels: Stir in a half-cup of heavy cream during the final ten minutes of cooking to create a richer, velvety sauce that pairs beautifully with the tender mussels.

Storage and make-ahead

Fridge

Store in an airtight container for up to 24 hours.

Reheat

Reheat gently in a saucepan over low heat until warmed through, being careful not to overcook the mussels.

Store any leftover mussels in an airtight container in the refrigerator for no more than one day. It is best to remove the meat from the shells before storing to save space and ensure it stays properly submerged in the sauce, which helps maintain moisture.

Ensure that the leftovers are cooled to room temperature within two hours of cooking before placing them into the refrigerator to maintain food safety standards.

While this dish is best served immediately, you can prepare the tomato sauce base with the herbs and onions ahead of time. Simply store the sauce in the refrigerator and combine it with the fresh, cleaned mussels just before you are ready to start the slow cooker.

This shortens the preparation time significantly for a busy weeknight meal while ensuring the mussels remain as fresh as possible before they are cooked.

Serving ideas

Serve the mussels directly from the slow cooker into wide, shallow bowls to showcase the beautiful colors of the tomatoes and the shells. Ensure that each serving includes a generous amount of the tomato broth, as this is the highlight of the dish. Providing a separate bowl for empty shells is a thoughtful touch for guests, making the dining experience much more enjoyable and less cluttered.

Pair this meal with a crisp, dry white wine that matches the acidity of the tomatoes. The combination of the briny mussels and the herbaceous sauce creates a sophisticated flavor profile that pairs well with simple sides.

Because the dish is relatively light, it works well as a standalone main course, especially when accompanied by plenty of crusty bread to soak up every last drop of the delicious, herb-scented tomato sauce.

Frequently asked questions

Recipe card

Slow Cooker Provençal Mussels with Crushed Tomatoes

Prep 10 minCook 2 hTotal 2 h 10 minServes 4

Ingredients

• 2 lb fresh mussels, scrubbed and debearded
• 1 yellow onion, finely chopped
• 1 tbsp herbes de Provence
• 28 oz crushed tomatoes

Instructions

1. Place the cleaned fresh mussels into the bottom of the slow cooker bowl. Scatter the finely chopped onion evenly over the mussels to ensure the flavor permeates as they steam.
2. Sprinkle the herbes de Provence over the onion and mussels. Pour the crushed tomatoes over the top, ensuring everything is well-coated in the sauce. Cover the slow cooker with its lid.
3. Cook on low for approximately two hours. The mussels are done when they have opened fully and reached an internal temperature of 145°F (63°C). Serve immediately while steaming hot.

Contains: mollusks

Estimated nutrition per serving

Calories

280

Protein

22 g

Carbohydrates

18 g

Fat

12 g

Fiber

4 g

Sugar

8 g

Sodium

650 mg

Automatic estimate from the ingredient list, not laboratory-verified.