Slow Cooker Sausage and Peppers
There’s something about coming home to a slow cooker full of sausage and peppers that makes dinner feel extra comforting. The smell of garlic, tomatoes, and Italian herbs fills the kitchen, and honestly, it makes me hungry long before it’s time to eat!
This slow cooker sausage and peppers recipe is one of those easy meals I like to keep in my back pocket for busy days. It uses simple ingredients, requires very little hands-on cooking, and turns into a rich, savory dinner while you get on with everything else.
Smoky sausage cooks slowly with sweet bell peppers, tender onions, garlic, and a flavorful tomato sauce. As everything simmers together, the sausage adds its delicious savory flavor to the sauce, while the peppers soften and become wonderfully sweet.
I usually serve this dish over rice, pasta, or mashed potatoes, depending on what I have available. It’s also fantastic piled into toasted sandwich rolls for an easy sausage and pepper sandwich.
The best part? You don’t need to spend your evening standing over the stove. Just prepare the ingredients, add them to your crockpot, and let the slow cooker do most of the work.
If you’re looking for an easy slow cooker sausage recipe that tastes like you’ve spent hours preparing dinner, this one is definitely worth trying!
Why You’ll Love This Slow Cooker Sausage and Peppers Recipe
- Easy preparation: Most of the work involves slicing the sausage and vegetables.
- Rich tomato sauce: Crushed tomatoes, garlic, and Italian herbs create a delicious sauce.
- Perfect for busy evenings: Let the slow cooker handle the cooking while you take care of other things.
- Versatile serving options: Serve it over pasta, rice, polenta, or in sandwich rolls.
- Great for leftovers: The flavors continue to develop, making the next day’s lunch just as delicious.
- Easy to customize: Adjust the peppers, seasonings, and sausage to suit your family’s preferences.
Recipe Overview
- Prep time: 15 minutes
- Cook time: 4–6 hours on LOW or 2–3 hours on HIGH
- Total time: Approximately 4 hours 15 minutes to 6 hours 15 minutes
- Servings: 4–6
- Cooking method: Slow cooker or crockpot
Ingredients You’ll Need
Main Ingredients
- 1½ pounds smoked sausage or kielbasa: Slice into rounds about ½ inch thick. Beef, pork, or smoked turkey sausage can all work.
- 2 bell peppers: Use a combination of red, green, and yellow peppers for color and flavor.
- 1 large yellow onion: Slice into strips or roughly chop it.
- 3 cloves garlic: Minced fresh garlic adds wonderful flavor.
- 1 can (28 ounces) crushed tomatoes: This forms the base of the rich tomato sauce.
- 1 can (14.5 ounces) diced tomatoes, undrained: Adds texture and extra tomato flavor.
- ½ cup chicken broth: Helps the ingredients cook together without making the sauce overly thick too early.
- 1 tablespoon olive oil: Optional, especially if you plan to brown the sausage first.
Seasonings
- 1 teaspoon Italian seasoning
- 1 teaspoon paprika
- ½ teaspoon dried oregano
- ½ teaspoon black pepper
- ¼–½ teaspoon salt, to taste
- ¼ teaspoon red pepper flakes, optional
- 1 tablespoon tomato paste, optional: Adds a deeper tomato flavor.
Optional Garnishes
- Chopped fresh parsley
- Grated Parmesan cheese
- Fresh basil leaves
- A little extra black pepper
How to Make Slow Cooker Sausage and Peppers
This crockpot sausage and peppers recipe is wonderfully straightforward. Here’s how I prepare it at home.
Step 1: Slice the Sausage and Vegetables
Cut the sausage into even rounds. Wash the bell peppers, remove their seeds, and slice them into strips or bite-sized chunks.
Peel and slice the onion, then mince the garlic.
I usually try to keep the vegetables roughly the same size so they cook evenly. There’s no need to make everything perfect, though—this is a relaxed, home-style dinner.
Step 2: Brown the Sausage (Optional)
If you have an extra five minutes, heat the olive oil in a skillet over medium heat.
Add the sausage slices and brown them lightly on both sides. This creates extra color and a deeper roasted flavor.
Transfer the sausage to the slow cooker.
Honestly, I skip this step when I’m especially busy. The slow cooker still produces a delicious meal, so don’t feel that you need to dirty another pan.
If using raw Italian sausage instead of fully cooked smoked sausage, cook it according to food-safety guidance and verify that it reaches the appropriate internal temperature before serving.
Step 3: Add the Vegetables
Place the sliced onions, bell peppers, and minced garlic into the slow cooker.
Spread them around the sausage so the ingredients are distributed evenly
The onions and peppers will soften as they cook and release their natural sweetness into the tomato sauce.
Step 4: Prepare the Tomato Sauce
In a bowl, combine the crushed tomatoes, diced tomatoes, chicken broth, Italian seasoning, paprika, oregano, black pepper, and optional tomato paste.
Stir everything together until the seasonings are evenly distributed.
Pour the tomato mixture over the sausage and vegetables.
Add the red pepper flakes if you like a little heat. If you’re cooking for children or anyone who prefers milder food, you can leave them out.
Step 5: Slow Cook Until Tender
Cover the slow cooker with the lid.
Cook using one of these settings:
- LOW: 4–6 hours
- HIGH: 2–3 hours
Cooking times can vary depending on your slow cooker and the size of the sausage pieces and vegetables.
Check the peppers and onions toward the end. They should be tender, and the tomato sauce should be hot and flavorful.
Fully cooked smoked sausage needs to be heated thoroughly. If using raw sausage, follow its safe cooking instructions and verify the appropriate internal temperature: 160°F (71°C) for raw pork or beef sausage, or 165°F (74°C) for raw poultry sausage.
Step 6: Taste and Adjust the Seasoning
Give everything a gentle stir.
Taste the tomato sauce and add a little more salt, black pepper, Italian seasoning, or red pepper flakes if needed.
If the sauce seems thinner than you’d like, remove the lid for the final 20–30 minutes, provided your slow cooker manufacturer permits this, and allow some moisture to evaporate. Keep an eye on it so the sauce doesn’t dry out.
Step 7: Garnish and Serve
Sprinkle chopped parsley or fresh basil over the finished dish.
Add grated Parmesan if you enjoy a cheesy finish.
Serve the sausage and peppers hot, spooning plenty of tomato sauce over your chosen side.
At this point, the kitchen should smell amazing, and dinner is ready without a complicated cooking process.
Tips for the Best Crockpot Sausage and Peppers
1. Choose a Sausage You Enjoy
Smoked kielbasa gives the dish a savory, smoky flavor. Italian sausage creates a more traditional Italian-inspired taste, while turkey sausage is a useful alternative if you prefer poultry.
2. Use Different Colors of Bell Peppers
Red and yellow peppers are generally sweeter, while green peppers have a slightly more bitter, earthy flavor. Combining them creates a nice balance.
3. Don’t Add Too Much Liquid
The tomatoes and vegetables already contain plenty of moisture. I usually stick to the measured amount of broth and add more only if needed.
Too much liquid can make the finished sauce watery.
4. Keep the Lid Closed
Every time you lift the lid, heat escapes and the cooking time can increase. I recommend checking the dish near the end rather than opening the slow cooker repeatedly.
5. Make the Sauce Your Own
For a richer sauce, add a tablespoon of tomato paste. For a little sweetness, stir in a small pinch of sugar if your tomatoes taste particularly acidic. For extra heat, increase the red pepper flakes.
6. Add Some Fresh Herbs at the End
Dried herbs work well during slow cooking, but fresh basil and parsley are lovely finishing touches. They add freshness and brighten the rich tomato sauce.
7. Don’t Overcook the Peppers
Bell peppers become soft as they cook. If you prefer them slightly firmer, add them during the final 60–90 minutes rather than at the beginning, adjusting for your slow cooker’s performance.
What to Serve with Slow Cooker Sausage and Peppers
One of my favorite things about this recipe is that it works with so many sides. You can make it a simple weeknight dinner or dress it up for a relaxed weekend meal.
1. Pasta
Serve the sausage and tomato sauce over spaghetti, penne, rigatoni, or your favorite pasta shape. The sauce clings beautifully to pasta, making this a satisfying meal.
2. Steamed White Rice
Rice is a simple option that soaks up the tomato sauce. It’s especially convenient when you want a filling dinner without much extra preparation.
3. Crusty Bread or Sandwich Rolls
Spoon the sausage and peppers into toasted hoagie rolls for a hearty sausage sandwich. You can add mozzarella or provolone and briefly melt the cheese under a broiler.
Crusty bread is also excellent for dipping into the tomato sauce.
4. Creamy Mashed Potatoes
The savory tomato sauce pairs surprisingly well with smooth mashed potatoes. It’s a comforting combination for a chilly evening.
5. Polenta
Soft polenta makes a delicious base for the sausage and peppers. Its mild flavor balances the rich tomato sauce.
6. A Fresh Green Salad
A simple salad with lettuce, cucumber, tomatoes, and a light vinaigrette adds freshness and balances the richness of the sausage.
7. Roasted Vegetables
Serve with roasted zucchini, broccoli, or green beans if you’d like to add more vegetables to the meal.
Easy Variations to Try
Once you’ve made this recipe, it’s easy to adapt it to suit your preferences.
Spicy sausage and peppers: Use hot Italian sausage and increase the red pepper flakes.
Cheesy sausage and peppers: Sprinkle mozzarella or Parmesan over the finished dish and let the cheese melt before serving.
Sausage and peppers with mushrooms: Add sliced mushrooms for extra savory flavor. For a firmer texture, add them during the last couple of hours.
Italian-style sausage and peppers: Use Italian seasoning, oregano, fresh basil, and a little Parmesan for a more herb-forward version.
Low-carb serving option: Serve the sausage and peppers on their own or with sautéed zucchini instead of pasta, rice, or potatoes.
Smoky version: Use smoked sausage and a little extra smoked paprika.
Extra vegetable version: Add sliced zucchini or mushrooms near the end of cooking to help them retain some texture.
How to Store and Reheat Leftovers
This recipe is excellent for meal prep because the tomato sauce keeps the sausage moist and flavorful.
Refrigerating
Allow the leftovers to cool slightly, then transfer them to shallow, airtight containers. Refrigerate within two hours of cooking and use within 3–4 days.
Freezing
Place cooled sausage and peppers in freezer-safe containers, leaving a little room for expansion. Freeze for approximately 2–3 months for best quality.
The peppers may soften further after thawing, but the sauce and sausage should still be tasty.
Reheating on the Stovetop
Transfer the leftovers to a saucepan and warm over medium-low heat, stirring occasionally. Add a small splash of water or broth if the sauce has thickened too much.
Reheating in the Microwave
Place a portion in a microwave-safe bowl, cover loosely, and heat in short intervals. Stir between intervals to distribute the heat evenly.
Reheat leftovers to 165°F (74°C) throughout, and avoid repeatedly cooling and reheating the same batch.
Approximate Nutrition Information
The estimates below assume six servings made with smoked sausage, tomatoes, bell peppers, onions, and a modest amount of olive oil. They do not include pasta, rice, bread, or other sides.
- Calories: 350–450
- Protein: 15–22 g
- Carbohydrates: 15–22 g
- Fat: 24–32 g
- Saturated fat: 7–11 g
- Fiber: 4–6 g
- Sugar: 8–12 g
- Sodium: 800–1,300 mg
These values are approximate and can vary considerably with the type of sausage, brand of canned tomatoes, amount of salt, and serving size. Check product labels or use a recipe nutrition calculator for more precise figures.
Frequently Asked Questions
1. Can I use raw Italian sausage instead of smoked sausage?
Yes. Italian sausage is a great option and gives the dish a slightly different flavor. You can brown it first for extra flavor, but make sure it reaches a safe internal temperature before serving: 160°F (71°C) for pork or beef sausage and 165°F (74°C) for poultry sausage. Cooking times may vary depending on the sausage size and whether it is whole or sliced.
2. Do I need to brown the sausage before putting it in the slow cooker?
No, browning is optional when you’re using fully cooked smoked sausage. It adds color and a deeper roasted flavor, but the recipe works without it. If you’re using raw sausage, browning can improve texture, although it doesn’t replace the need to cook it safely.
3. Can I make slow cooker sausage and peppers ahead of time?
Absolutely. You can slice the vegetables and sausage in advance and refrigerate them separately in airtight containers. Mix the sauce ingredients ahead of time if you like, then combine everything when you’re ready to cook. Keep perishable ingredients refrigerated until preparation.
4. Why is my sausage and pepper tomato sauce watery?
Bell peppers, onions, and tomatoes release moisture during cooking. If your sauce is too thin, leave the lid off for the final 20–30 minutes if your slow cooker instructions allow it. You can also stir in a little tomato paste to thicken the sauce and intensify its flavor.
5. Can I freeze slow cooker sausage and peppers?
Yes. Let the dish cool promptly, transfer it to freezer-safe containers, and freeze for about 2–3 months for best quality. Thaw it in the refrigerator and reheat until it reaches 165°F (74°C). The peppers may become softer after freezing, but the dish will still work well over pasta or rice.
Final Thoughts
Slow cooker sausage and peppers in tomato sauce is the kind of easy, comforting meal that earns a regular place in the dinner rotation. You get smoky sausage, sweet peppers, tender onions, and a rich tomato sauce without spending hours in the kitchen.
I love how flexible this recipe is. Some nights, I’ll serve it over pasta; other times, I’ll pile it into toasted rolls or spoon it over rice. It’s also a practical option for preparing meals ahead of time and making the most of leftovers.
If you’re looking for a simple crockpot dinner that tastes hearty, homemade, and full of flavor, give this sausage and peppers recipe a try.
Prepare the ingredients, let the slow cooker do its job, and enjoy a comforting dinner with very little fuss. And don’t forget the crusty bread—you’re going to want something to soak up that delicious tomato sauce!