Slow Cooker Chicago-Style Italian Sausage with Giardiniera Tips, FAQ & printable recipe

Tips for success

For a more authentic Chicago-style experience, serve these sausages on high-quality, toasted Italian rolls. The bread should be sturdy enough to hold the juices from the giardiniera and peppers without becoming soggy. You can lightly toast the rolls with a bit of butter or olive oil before stuffing them to add an extra layer of texture and warmth that complements the tender sausage perfectly.

If you find the flavor of the giardiniera too sharp, you can dilute the brine with a splash of chicken or vegetable broth. Conversely, if you prefer a more intense flavor, add an extra half-cup of giardiniera during the final hour of cooking.

Adjusting the ratio of brine to meat is a simple way to customize the dish to your specific taste profile while maintaining the integrity of the slow-cooked method.

Variations

• Spicy Arrabbiata Version: Add a tablespoon of crushed red pepper flakes and a half-cup of crushed tomatoes to the slow cooker to create a spicy, tomato-based sauce that pairs beautifully with the tangy giardiniera and Italian sausage.
• Garlic-Infused Sausage: Add four cloves of smashed garlic to the slow cooker along with the peppers and onions to enhance the aromatic profile of the dish, providing a deeper, savory base that complements the herbs.

Storage and make-ahead

Fridge

Store in an airtight container for up to 3 days in the refrigerator.

Freezer

Store in a freezer-safe container for up to 2 months.

Reheat

Gently reheat in a saucepan over low heat or in the microwave until the internal temperature reaches 165°F (74°C).

Allow any leftovers to cool to room temperature, but do not leave them out for more than two hours. Once cooled, transfer the sausages and vegetables into an airtight container.

Keep the meat submerged in as much of the cooking liquid as possible to maintain moisture and prevent the sausages from drying out while in storage. This helps preserve the flavor and texture for several days when kept in the refrigerator.

This dish is excellent for making ahead, as the flavors continue to meld and improve after a day in the refrigerator. You can assemble the ingredients in the slow cooker insert the night before, cover it, and keep it in the refrigerator.

When you are ready to cook, simply place the insert into the base and start the cooking process, adding about 30 minutes to the cook time to account for the cold temperature of the ingredients.

Serving ideas

Serve the sausages directly from the slow cooker, using tongs to lift the links onto your choice of bread. Spoon a generous amount of the pepper, onion, and giardiniera mixture over each link to ensure every bite is packed with flavor.

The combination of the hot, savory sausage and the tangy, crunchy vegetables is the hallmark of a classic Chicago-style sandwich, so do not be shy with the toppings when plating.

For a casual gathering, set out a platter of toasted rolls alongside the slow cooker so guests can assemble their own sandwiches. Provide extra giardiniera on the side for those who prefer an even bolder, spicier experience. This method is perfect for feeding a crowd, as it keeps the food warm and accessible throughout the meal, allowing everyone to enjoy the sausages at their own pace.

Frequently asked questions

Recipe card

Slow Cooker Chicago-Style Italian Sausage with Giardiniera

Prep 10 minCook 4 hRest 5 minTotal 4 h 15 minServes 4

Ingredients

• 4 links Italian sausage
• 2 cups green bell pepper strips
• 1 cup yellow onion strips
• 1 tbsp Italian seasoning
• 1 cup giardiniera in brine

Instructions

1. Place the raw Italian sausage links in the bottom of the slow cooker insert, arranging them in a single layer. Layer the green bell pepper strips and yellow onion strips evenly over the top of the sausage links.
2. Sprinkle the Italian seasoning uniformly over the peppers, onions, and sausage links. Pour the giardiniera and its brine directly over the assembled ingredients to provide moisture and acidity during the slow cooking process.
3. Cover the slow cooker and cook on low for 4 hours. Ensure the internal temperature of the sausage reaches at least 160°F (71°C) before serving. Let the sausages rest for 5 minutes before removing from the cooker to serve.

Contains: sulfites

Estimated nutrition per serving

Calories

380

Protein

18 g

Carbohydrates

8 g

Fat

32 g

Fiber

2 g

Sugar

3 g

Sodium

950 mg

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