Introduction:
Who says comfort food has to be complicated? This 5-Ingredient Slow Cooker Stuffed Pepper Casserole skips the tedious stuffing process but keeps all the classic, savory flavors you love. Perfect for busy families, weeknight dinners, or meal prep, this recipe delivers juicy peppers, flavorful sausage, and a cheesy finish with minimal effort.
Imagine coming home to your kitchen filled with the aroma of tender peppers, melted mozzarella, and perfectly seasoned Italian sausage—all made effortlessly in your slow cooker.
Ingredients:
Vegetables & Protein:
- 6–8 bell peppers (mix of red and green, halved and seeded)
- 1 lb ground Italian sausage (sweet or hot, depending on spice preference)
Other Essentials:
- 2 cups prepared marinara sauce (choose a high-quality brand for best flavor)
- 1 bag (8.5 oz) pre-cooked jasmine or basmati rice
- 2 cups shredded mozzarella cheese
Step-by-Step Instructions:
1. Prepare the Peppers
Wash bell peppers and cut in half from top to bottom. Remove seeds and white membranes. Place peppers in the slow cooker, overlapping if necessary—they’ll soften evenly while cooking.
2. Mix the Filling
In a mixing bowl, combine ground Italian sausage, pre-cooked rice, and 1 cup of marinara sauce. Mix thoroughly until rice and sausage are fully integrated. No extra seasoning is needed, thanks to the Italian sausage.
3. Layer & Slow Cook
Spoon the meat and rice mixture into each pepper half. Pour the remaining 1 cup of marinara sauce over the peppers to keep them moist. Cover and cook:
- Low: 6 hours
- High: 3 hours
4. Add the Cheesy Finish
About 15 minutes before serving, sprinkle shredded mozzarella over the top. Replace the lid and let the cheese melt into a golden, bubbly finish.
Why This Recipe Works:
- No Pre-Browning Needed: The slow cooker perfectly cooks the sausage while infusing flavor into the peppers.
- Minimal Prep: Pre-cooked rice and pre-seasoned sausage save time and effort.
- Customizable: Swap sausage for ground turkey for a leaner version, or use brown rice for added fiber. Add red pepper flakes for extra spice.
Pro Tips for Perfect Stuffed Peppers:
- Don’t Add Extra Water: Peppers release natural moisture; adding water makes the dish soupy.
- Choose Steady Peppers: Pick peppers with “four bumps” on the bottom—they sit flat and won’t tip over.
- Better the Next Day: These stuffed peppers taste even better the next day. Reheat in the microwave for an easy lunch or dinner.
Serving Suggestions:
- Serve alongside a crisp green salad for a balanced meal.
- Pair with garlic bread or a side of roasted vegetables.
- Garnish with fresh parsley for color and freshness.
💡 Pro Tip: For extra flavor, add a sprinkle of Parmesan on top before melting the mozzarella, or drizzle with a little extra marinara before serving.

