Slow Cooker Sausage and Peppers and onions
Italian crockpot Slow Cooker Sausage and Peppers and onions is a delightful dish that combines savory flavors with convenience. Perfect for busy weeknights or casual gatherings, this recipe brings together juicy Italian sausages with sweet peppers and onions, all cooked to perfection in your slow cooker. It’s versatile enough to serve as a hearty meal on its own or as a filling for sandwiches.
Why You’ll Love This Recipe
- Effortless Cooking: Simply add ingredients to your slow cooker and let it do the work while you relax.
- Flavorful Combination: The melding of spices, sausage, and vegetables creates an irresistible taste that everyone will love.
- Versatile Serving Options: Enjoy it on a bun, over rice, or topped with cheese—perfect for any occasion.
- Healthy Ingredients: Packed with veggies and lean protein, it’s a satisfying meal without the guilt.
- Family-Friendly: Kids and adults alike will appreciate the delicious flavors in this easy-to-make dish.
Tools and Preparation
To make this delicious slow-cooked dish, you’ll need some essential tools. Having the right equipment makes cooking easier and more enjoyable.
Essential Tools and Equipment
- Slow cooker
- Skillet
- Wooden spoon
- Cutting board
- Knife
Importance of Each Tool
- Slow cooker: The heart of this recipe; it allows for low-and-slow cooking that enhances flavors.
- Skillet: Perfect for searing sausages before slow cooking, adding extra flavor to the dish.
- Cutting board & Knife: Essential for preparing your vegetables quickly and safely.

Ingredients
For this tasty Slow Cooker Sausage and Peppers and onions recipe, gather the following ingredients:
For the Sausages
- 1 pkg Italian sausages (5, uncooked)
For the Vegetables
- 2 bell peppers, sliced (red & green)
- 1 large onion, sliced
Seasoning & Sauce
- 1/2 tsp garlic salt (or salt + garlic powder)
- 1/2 tsp Italian seasoning
- 1/2 tsp freshly ground black pepper
- 1 cup marinara or pasta sauce (Rao’s recommended)
For Cooking
- 1 Tbsp olive oil
- 1/2-3/4 cup shredded Mozzarella cheese (optional) (not pre-shredded)
How to Make Slow Cooker Sausage and Peppers and onions
Step 1: Sear the Sausages
Heat a skillet on medium heat and add a drizzle of olive oil to the pan.
– Sear the Italian sausages for 2-3 minutes on each side until they start to brown.
– You don’t need to cook them all the way through; just browning enhances their flavor during slow cooking.
– Transfer them to the bottom of your slow cooker.
Step 2: Prepare the Vegetables
Add the sliced onions and peppers on top of the sausages.
– Sprinkle with garlic salt, black pepper, and Italian seasoning evenly over the vegetables.
Step 3: Add Sauce
Spread marinara sauce over the onion and pepper mixture in the slow cooker.
Step 4: Slow Cook
Cook on high for 3-4 hours or low for 6-7 hours until the peppers are soft and the sausages are fully cooked through.
Enjoy your flavorful Slow Cooker Sausage and Peppers and onions!
How to Serve Slow Cooker Sausage and Peppers and onions
Serving Slow Cooker Sausage and Peppers and Onions is a delightful experience that allows you to enjoy the rich flavors of this dish in multiple ways. Here are some tasty serving suggestions to elevate your meal.
On a Bun
- Toasted Sub Roll: Serve the sausage and pepper mixture on a warm toasted sub roll for a hearty sandwich.
- Garlic Bread: Use garlic bread for an extra flavor kick while enjoying this Italian classic.
With Cheese
- Broiled Mozzarella: Top your sausage and peppers with shredded mozzarella cheese, then broil briefly until melted for a gooey finish.
- Parmesan Sprinkle: Add freshly grated Parmesan cheese for an extra layer of savory taste.
As a Standalone Dish
- Over Rice: Serve the sausage and peppers over steamed rice to soak up the flavorful sauce.
- With Polenta: Pair with creamy polenta for a comforting and filling meal option.
How to Perfect Slow Cooker Sausage and Peppers and onions
To make your Slow Cooker Sausage and Peppers and Onions even better, consider these useful tips. They will enhance flavor, texture, and presentation.
- Choose Quality Sausages: Use high-quality Italian sausages for the best flavor. Fresh or homemade varieties can elevate the dish significantly.
- Sear for Flavor: Always sear the sausages before adding them to the slow cooker. This step adds depth of flavor through caramelization.
- Adjust Seasoning: Taste your marinara sauce beforehand. If it’s bland, add spices like red pepper flakes or fresh herbs for an extra kick.
- Use Fresh Veggies: Fresh bell peppers and onions will contribute more vibrant flavors than frozen counterparts.
- Cook Low and Slow: For optimal tenderness, cook on low heat for longer periods. This method allows flavors to meld beautifully.
- Experiment with Sauces: Switch up marinara sauce with different flavors like roasted garlic or arrabbiata to create new variations.
Best Side Dishes for Slow Cooker Sausage and Peppers and onions
Pairing your Slow Cooker Sausage and Peppers and Onions with complementary side dishes can enhance your dining experience. Here are some excellent options:
- Garlic Mashed Potatoes: Creamy mashed potatoes infused with garlic provide a rich base that balances the dish well.
- Roasted Vegetables: A mix of seasonal veggies roasted until caramelized adds color and nutrition to your plate.
- Caesar Salad: Crisp romaine lettuce topped with Parmesan cheese, croutons, and Caesar dressing offers a refreshing contrast.
- Crusty Bread: A loaf of crusty bread is perfect for soaking up any leftover sauce from your dish.
- Steamed Broccoli: Lightly steamed broccoli adds a healthy green element that complements the richness of the sausages.
- Quinoa Pilaf: Fluffy quinoa mixed with herbs provides a nutty flavor that pairs nicely without overpowering the main dish.
- Coleslaw: A tangy coleslaw brings crunchiness that contrasts beautifully with the tender sausages and peppers.
- Polenta Fries: Crispy polenta fries are fun to eat alongside your main dish while offering a unique texture.
Common Mistakes to Avoid
Slow cooking can be simple, but there are common pitfalls that can lead to less than perfect dishes. Here are some mistakes to watch out for:
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Skipping the Searing: Not browning the sausage first can lead to a lack of depth in flavor. Always take a few minutes to sear the sausages before adding them to the slow cooker.
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Overcrowding the Slow Cooker: If you try to fit too many ingredients into your pot, it can cook unevenly. Stick to the recipe quantities for best results.
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Ignoring Cooking Times: Cooking on high for too long can dry out your dish. Make sure to check the cooking time and adjust according to your slow cooker’s performance.
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Using Low-Quality Ingredients: Poor quality sausages or sauces can affect the overall taste. Opt for good-quality Italian sausages and marinara sauce for rich flavors.
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Not Tasting Before Serving: Failing to taste and adjust seasoning at the end can leave your dish flat. Always give it a final taste and adjust if necessary.

Storage & Reheating Instructions
Refrigerator Storage
- Store leftovers in an airtight container.
- Consume within 3-4 days for best quality.
Freezing Slow Cooker Sausage and Peppers and onions
- Use freezer-safe containers or bags.
- Freeze for up to 3 months; label with date for reference.
Reheating Slow Cooker Sausage and Peppers and onions
- Oven: Preheat oven to 350°F (175°C) and heat covered dish for about 20-25 minutes.
- Microwave: Place in a microwave-safe dish, cover, and heat in 1-minute intervals until warmed through.
- Stovetop: Reheat in a pan over medium heat, stirring occasionally until hot.
Frequently Asked Questions
If you have questions about this recipe, you’re not alone! Here are some common inquiries:
What can I substitute for Italian sausage in Slow Cooker Sausage and Peppers and onions?
You can use turkey or chicken sausage as a leaner alternative while still keeping great flavor.
Can I make Slow Cooker Sausage and Peppers and onions vegetarian?
Yes! Replace sausage with plant-based meat alternatives or hearty vegetables like mushrooms or eggplant.
How do I enhance the flavor of Slow Cooker Sausage and Peppers and onions?
Adding fresh herbs like basil or oregano before serving can elevate the dish significantly.
Can I use different types of peppers in this recipe?
Absolutely! Feel free to mix green, red, yellow, or even spicy peppers according to your preference.
Final Thoughts
Slow Cooker Sausage and Peppers and onions is a delightful dish that brings comfort food right to your table with minimal effort. Its versatility allows you to customize it with different proteins or vegetables based on what you have on hand. Whether served over rice, on a bun, or alongside pasta, this recipe is sure to impress!
Slow Cooker Sausage and Peppers and Onions
Indulge in the comforting flavors of Slow Cooker Sausage and Peppers and Onions, a dish that brings together juicy sausages, sweet bell peppers, and caramelized onions. Perfect for busy weeknights or casual gatherings, this slow-cooked delight requires minimal effort while delivering maximum flavor. Simply sear the sausages, layer with vibrant veggies, and let the slow cooker work its magic. Enjoy it on a toasted bun, over fluffy rice, or as a hearty standalone meal. This recipe is not only delicious but also family-friendly, ensuring everyone at your table will love it!
- Prep Time: 10 minutes
- Cook Time: 6–7 hours
- Total Time: 0 hours
- Yield: Serves approximately 5
- Category: Main
- Method: Slow Cooker
- Cuisine: Italian
Ingredients
- 5 uncooked chicken or turkey Italian sausages
- 2 bell peppers (red and green), sliced
- 1 large onion, sliced
- 1 cup marinara sauce
- 1/2 tsp garlic salt
- 1/2 tsp Italian seasoning
- 1 Tbsp olive oil
Instructions
- In a skillet over medium heat, add olive oil and sear the sausages for 2-3 minutes on each side until browned. Transfer to the slow cooker.
- Layer sliced onions and peppers over the sausages. Sprinkle with garlic salt and Italian seasoning.
- Pour marinara sauce evenly over the top.
- Cook on high for 3-4 hours or low for 6-7 hours until sausages are fully cooked and peppers are tender.
Nutrition
- Serving Size: 1 cup (240g)
- Calories: 290
- Sugar: 5g
- Sodium: 720mg
- Fat: 18g
- Saturated Fat: 6g
- Unsaturated Fat: 10g
- Trans Fat: 0g
- Carbohydrates: 20g
- Fiber: 3g
- Protein: 18g
- Cholesterol: 60mg