Oh man, this is one of those cozy crockpot dinners that makes the whole house smell ridiculously good. You toss everything in, walk away, and somehow end up with juicy sausage, tender peppers, sweet onions, and a rich garlicky sauce that tastes like you cooked all day. Honestly, this recipe saved my weeknight dinner game more times than I can count.
Why This Recipe Works
- Super easy prep
- Big Italian-style flavor
- Great for meal prep
- Perfect for game day or busy nights
- Tastes even better the next day
And let’s face it — anything served over toasted hoagie rolls or buttery mashed potatoes is gonna disappear fast.
Ingredients
- 2 lbs Italian sausage links (sweet or spicy)
- 3 bell peppers, sliced
- 1 large onion, sliced
- 4 garlic cloves, minced
- 1 can crushed tomatoes
- 2 tablespoons tomato paste
- 1 teaspoon Italian seasoning
- 1/2 teaspoon red pepper flakes
- Salt and black pepper
- 2 tablespoons olive oil
- Fresh parsley for garnish
How To Make Slow Cooker Sausage & Peppers
Step 1: Brown the Sausage
Honestly, don’t skip this part if you can help it. Browning adds so much flavor.
Heat olive oil in a skillet over medium heat. Sear the sausage for about 2–3 minutes per side until golden brown. It doesn’t need to cook fully yet.
Step 2: Add Everything to the Crockpot
Place peppers and onions at the bottom of the slow cooker. Add garlic, crushed tomatoes, tomato paste, and seasonings.
Lay the sausage on top.
Step 3: Slow Cook
- LOW: 6–7 hours
- HIGH: 3–4 hours
The peppers get soft, the onions turn sweet, and the sauce becomes rich and savory. It’s kinda magic, honestly.
Step 4: Serve
Top with fresh parsley and cracked black pepper.
Serve with:
- Hoagie rolls
- Pasta
- Rice
- Creamy polenta
- Mashed potatoes
Or just eat a giant bowl straight from the crockpot. No judgment here.
Tips For The Best Sausage & Peppers
Use Italian Sausage
Sweet sausage gives classic flavor, but spicy sausage adds a nice kick. I usually mix both because my family can never agree.
Don’t Overcook the Peppers
If you like firmer peppers, add them halfway through cooking instead of at the start.
Add Cheese
A little melted provolone on top? Whew. So good.
Storage Tips
- Fridge: 4 days
- Freezer: Up to 2 months
- Reheat gently on the stove or microwave
The leftovers make killer sandwiches the next day. Maybe even better than day one, honestly.
FAQs
Can I use frozen sausage?
Yep, but thawing first gives better texture and flavor.
Can I make this low carb?
Absolutely. Skip the bread and serve over cauliflower rice or roasted veggies.
What peppers work best?
Red, yellow, and orange peppers bring sweetness. Green peppers add a stronger savory bite.
Final Thoughts
This Slow Cooker Sausage & Peppers recipe is comfort food at its finest. It’s hearty, saucy, simple, and packed with bold flavor without a ton of work. The kind of meal that feels like Sunday dinner even on a random Tuesday night.
And honestly? The smell alone is worth making it.

Slow Cooker Sausage & Peppers
Ingredients
Method
- Brown the Sausage
- Heat olive oil in a skillet over medium heat. Brown the sausage links for 2–3 minutes per side until golden. Transfer to the slow cooker.
- Add Vegetables and Sauce
- Place sliced peppers and onions into the slow cooker. Add garlic, crushed tomatoes, tomato paste, Italian seasoning, red pepper flakes, salt, and black pepper.
- Slow Cook
- Cover and cook:
- LOW for 6–7 hours
- HIGH for 3–4 hours
- The sausage should be fully cooked and the peppers tender.
- Garnish and Serve
- Top with fresh parsley before serving.
- Serve with hoagie rolls, pasta, mashed potatoes, rice, or polenta.






