Classic stuffed bell peppers are an enduring family favorite, but hollowing, stuffing, and baking individual peppers on a busy weeknight can be time-consuming. This Slow-Cooker Stuffed Bell Pepper Soup captures every ounce of that nostalgic savory comfort in an effortless, one-pot slow cooker creation: tender lean ground beef, colorful sweet bell peppers, and fire-roasted tomatoes slow-simmered in an herb-infused beef broth, finished with fluffy rice and melty sharp cheddar cheese.
Unlike stove-top soups that cook too quickly to develop deep complexity, letting the colorful bell peppers and browned ground beef gently simmer low and slow for six hours infuses the tomato broth with rich, savory depth. The natural sweetness of red and yellow peppers balances the tang of fire-roasted tomatoes, creating a thick, chili-like soup that warms you down to your toes on crisp autumn afternoons.
Why You’ll Love This Recipe
- All the Flavor, Half the Work: Eliminates the hassle of blanching and stuffing peppers—everything simmers together harmoniously in your crockpot.
- Hearty & Nutrient-Dense: Packed with lean protein, gut-healthy dietary fiber, lycopene, and vitamin C from three varieties of fresh bell peppers.
- Budget & Meal-Prep Friendly: Uses affordable pantry staples and produces a large 6-serving batch that tastes even better reheated the next day.
- Customizable Comfort: Easily swap white rice for brown rice, cauliflower rice, or quinoa to fit your dietary preferences.
Key Ingredients & Smart Swaps
- Lean Ground Beef: 85/15 or 90/10 lean ground beef provides rich, savory flavor without excess surface oil. Ground turkey or lean ground chicken work seamlessly as lighter options.
- Trio of Fresh Bell Peppers: A colorful combination of green, red, and yellow bell peppers delivers the signature bitter-sweet balance that defines classic stuffed peppers.
- Fire-Roasted Canned Tomatoes: Fire-roasted crushed tomatoes add a subtle smoky sweetness that elevates the broth far beyond ordinary canned diced tomatoes.
- Rich Beef Bone Broth: Provides savory depth that unites the tomato sauce, tomato paste, and herbs into a cohesive, velvety foundation.
- Cooked Rice: Long-grain white rice or jasmine rice adds satisfying body and chewy texture.
Step-by-Step Cooking Walkthrough
1. Brown the Meat: In a large skillet over medium-high heat, brown the ground beef with diced onion until cooked through. Add minced garlic for 60 seconds, drain excess grease, and transfer to slow cooker.
2. Load the Slow Cooker: Add chopped bell peppers, fire-roasted tomatoes, tomato sauce, beef broth, tomato paste, Worcestershire sauce, Italian seasoning, smoked paprika, salt, and pepper.
3. Slow Cook to Perfection: Cover and cook on LOW for 6 to 7 hours (or HIGH for 3 to 4 hours) until the bell peppers are fork-tender and aromatic.
4. Stir in Rice: Add cooked white rice during the final 20 to 30 minutes on LOW to heat through.
5. Garnish & Serve: Ladle hot soup into wide ceramic bowls, crown with shredded sharp cheddar cheese and fresh minced parsley, and enjoy!
3 Chef Secrets for Perfect Results
1. Brown Meat Before Slow Cooking: Never add raw ground beef directly into a slow cooker. Searing it in a skillet builds rich caramelized fond and allows you to drain off excess rendered fat.
2. Add Pre-Cooked Rice at the End: Cooking uncooked dry rice inside the slow cooker for 6 hours causes grains to swell excessively, turning your soup into a thick mush. Adding cooked rice in the last 20 minutes preserves perfect texture.
3. Balance with a Touch of Sweetness: Bell peppers and fire-roasted tomatoes have bright acidity. If your tomatoes are particularly tart, stir in half a teaspoon of brown sugar to round out the tomato-herb finish.
What to Serve With Stuffed Pepper Soup
- Warm Garlic Bread or Baguette: Crispy garlic bread or warm sourdough is ideal for dipping into the rich tomato-beef broth.
- Crisp Garden Caesar Salad: A cool, crisp salad of romaine lettuce and shaved parmesan offers a refreshing textural contrast.
- Tortilla Chips or Saltines: Crunchy tortilla chips provide a satisfying crunch when crushed over the cheesy top.
Storage, Freezing & Reheating Instructions
- Refrigeration: Cool completely and store in airtight containers for up to 4 days. If storing leftovers, consider keeping rice separate to prevent it from soaking up extra broth.
- Quick Reheating: Reheat on the stovetop over medium heat with a splash of beef broth or water to refresh the consistency.
- Freezer-Friendly: Freeze the soup base (without rice) for up to 3 months. When ready to enjoy, thaw overnight, reheat to a simmer, and stir in freshly cooked rice.
Slow-Cooker Stuffed Bell Pepper Soup with Ground Beef and Rice
Ingredients
Method
- Heat olive oil in a skillet over medium-high heat. Add ground beef and diced onion. Cook 6 to 8 minutes, breaking up meat with a wooden spoon until browned. Add minced garlic and cook 1 minute. Drain excess grease and transfer to 6-quart slow cooker.
- Add chopped bell peppers, fire-roasted tomatoes, tomato sauce, beef broth, tomato paste, Worcestershire sauce, Italian seasoning, smoked paprika, salt, and pepper. Stir well until tomato paste dissolves.
- Cover and cook on LOW for 6 to 7 hours (or HIGH for 3 to 4 hours) until bell peppers are tender and the rich beef broth is deeply developed.
- Stir in cooked white rice during the final 20 to 30 minutes of cooking on LOW so the rice absorbs the savory broth without getting mushy.
- Taste and adjust seasoning. Ladle steaming hot soup into bowls, top generously with shredded cheddar cheese and minced parsley, and serve with warm bread!
Nutrition
Tried this recipe?
Let us know how it was!Frequently Asked Questions
Can I make this soup in an Instant Pot?
Yes! Brown beef and onions on Sauté mode. Add peppers, tomatoes, broth, and seasonings. Seal and pressure cook on HIGH for 5 minutes, followed by a quick release. Stir in cooked rice and serve.
Can I use brown rice or cauliflower rice instead?
Absolutely! Cooked brown rice provides a wonderful nutty chew, while riced cauliflower creates a delicious low-carb, keto-friendly alternative.
How can I make this soup spicier?
Add a diced jalapeño along with the bell peppers, or stir in 1/2 teaspoon of red pepper flakes and a dash of hot sauce for fiery warmth.
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