Slow Cooker Stuffed Pepper Soup

Description

Slow Cooker Stuffed Pepper Soup is a rich, comforting, and flavorful homemade soup made with seasoned ground beef, tender bell peppers, rice, tomatoes, and a delicious savory broth. It delivers all the classic flavors of traditional stuffed peppers without the extra work of filling and baking individual peppers.

This easy crockpot soup combines juicy ground beef, sweet red and green bell peppers, aromatic onions, garlic, and Italian herbs. As the ingredients slowly simmer together, the flavors develop into a hearty, satisfying meal.

The tomato-based broth adds a wonderful richness, while tender rice makes every spoonful filling and delicious.

Perfect for chilly evenings, busy weeknights, Sunday family dinners, or meal preparation, this soup is budget-friendly and made with simple everyday ingredients.

Serve it with crusty bread, garlic toast, or a fresh green salad for a complete homemade dinner.

Prep Time: 15 minutes
Cook Time: 6–7 hours on LOW or 3–4 hours on HIGH
Total Time: Approximately 6 hours 15 minutes to 7 hours 15 minutes
Servings: 6–8
Cooking Method: Slow Cooker
Difficulty: Easy

Ingredients For the Ground Beef

• 1½ pounds lean ground beef

• 1 tablespoon olive oil

• 1 medium yellow onion, finely diced

• 4 garlic cloves, minced

• ½ teaspoon salt

• ½ teaspoon freshly ground black pepper

For the Vegetables

• 2 medium green bell peppers, chopped

• 2 medium red bell peppers, chopped

• 1 medium carrot, finely diced (optional)

• 1 celery stalk, finely chopped (optional)

For the Tomato Broth

• 1 can (28 oz) crushed tomatoes

• 1 can (14.5 oz) diced tomatoes, with juices

• 4 cups low-sodium beef broth

• 2 tablespoons tomato paste

• 1 tablespoon Worcestershire sauce

• 1 teaspoon Italian seasoning

• 1 teaspoon dried oregano

• 1 teaspoon dried basil

• ½ teaspoon smoked paprika

• ½ teaspoon onion powder

• ¼ teaspoon crushed red pepper flakes (optional)

• 1 bay leaf

For the Rice

• ¾ cup uncooked long-grain white rice

• 1½ cups water, for cooking the rice separately

For Garnishing

• 2 tablespoons freshly chopped parsley

• Freshly ground black pepper

• Grated Parmesan cheese (optional)

• Shredded mozzarella cheese (optional)

Step-by-Step Instructions

Step 1: Prepare the Vegetables

Wash the red and green bell peppers thoroughly.

Remove the stems, seeds, and white membranes.

Cut the peppers into bite-sized pieces.

Peel and finely dice the onion, then mince the garlic.

If using carrots and celery, chop them into small, evenly sized pieces.

Step 2: Brown the Ground Beef

Heat olive oil in a large skillet over medium-high heat.

Add the ground beef and break it apart using a wooden spoon.

Cook for approximately 6–8 minutes, stirring occasionally, until the beef is browned and fully cooked.

Drain any excess grease.

Browning the beef before adding it to the slow cooker helps develop a richer flavor.

Step 3: Add the Onion and Garlic

Add the diced onion to the skillet with the browned beef.

Cook for approximately 3 minutes until the onion begins to soften.

Stir in the minced garlic and cook for another 30 seconds until fragrant.

Season with salt and black pepper.

Step 4: Transfer to the Slow Cooker

Lightly grease the inside of a 5–6 quart slow cooker.

Transfer the cooked ground beef, onion, and garlic mixture into the slow cooker.

Spread the mixture evenly across the bottom.

Step 5: Add the Bell Peppers

Add the chopped green and red bell peppers.

Include the diced carrots and celery if using.

Stir gently to combine the vegetables with the seasoned ground beef.

Step 6: Add the Tomatoes and Broth

Pour in the crushed tomatoes and diced tomatoes with their juices.

Add the beef broth and tomato paste.

Stir in the Worcestershire sauce, Italian seasoning, oregano, basil, smoked paprika, onion powder, and optional red pepper flakes.

Add the bay leaf.

Mix everything thoroughly so the seasonings are evenly distributed.

Step 7: Slow Cook the Soup

Cover the slow cooker with its lid.

Cook on LOW for 6–7 hours or HIGH for 3–4 hours, until the bell peppers are tender and the flavors have blended.

Avoid lifting the lid unnecessarily because this releases heat and may extend the cooking time.

Step 8: Prepare the Rice

About 20 minutes before serving, rinse the uncooked rice under cool running water.

Combine the rice and water in a saucepan.

Bring to a boil, reduce the heat to low, cover, and simmer for approximately 15–18 minutes, or according to the package directions.

Remove from heat and let stand, covered, for 5 minutes.

Fluff the rice gently with a fork.

Cooking the rice separately prevents it from becoming overly soft and absorbing too much soup broth.

Step 9: Combine the Rice and Soup

Remove the bay leaf from the slow cooker.

Stir the cooked rice into the soup just before serving.

Alternatively, place a spoonful of rice into each serving bowl and ladle the hot soup over it.

This method is especially useful when preparing leftovers.

Step 10: Adjust the Flavor

Taste the soup and adjust the salt and black pepper as needed.

If the soup is too thick, add a little warm beef broth.

For a thicker soup, allow it to cook uncovered briefly, if your slow cooker manufacturer permits.

For a brighter flavor, add a small splash of fresh lemon juice.

Step 11: Garnish and Serve

Ladle the hot stuffed pepper soup into serving bowls.

Sprinkle freshly chopped parsley over the top.

Add grated Parmesan or shredded mozzarella cheese if desired.

Serve immediately with warm crusty bread or garlic toast.

Tips and Notes

1. Choose Lean Ground Beef: Using 90% lean ground beef helps keep the soup flavorful without excessive grease.

2. Brown the Beef First: Browning adds depth of flavor and allows you to drain unwanted fat.

3. Use Colorful Bell Peppers: Combining red and green peppers creates a beautiful appearance and balances sweetness with savory flavor.

4. Cook Rice Separately: This is the best way to prevent mushy rice, especially when storing leftovers.

5. Adjust the Broth: Rice absorbs liquid over time, so add extra broth when reheating.

6. Add More Vegetables: Zucchini, mushrooms, carrots, and celery are delicious additions.

7. Make It Spicier: Add cayenne pepper, crushed red pepper flakes, or diced jalapeños.

8. Try Ground Turkey: Substitute ground turkey for beef if you prefer a lighter variation. Cook it thoroughly before adding it to the slow cooker.

9. Make It Lower-Carb: Replace the rice with cooked cauliflower rice and stir it in just before serving.

10. Refrigerate Properly: Store the soup and cooked rice separately in airtight containers in the refrigerator within 2 hours of cooking. Use within 3–4 days.

Frequently Asked Questions (Q&A)

1. Can I Make Stuffed Pepper Soup on the Stovetop?

Yes. Brown the beef with onion and garlic in a large pot. Add the peppers, tomatoes, broth, and seasonings. Simmer for approximately 30–40 minutes until the vegetables are tender. Add separately cooked rice before serving.

2. Can I Use Ground Turkey Instead of Beef?

Absolutely! Ground turkey works well and creates a lighter version of this classic soup.

3. Can I Add Uncooked Rice Directly to the Slow Cooker?

Yes, but the cooking time and liquid requirements will change. Add the rice near the end, follow its cooking requirements, and check that it becomes fully tender. Cooking it separately gives more consistent results.

4. Can I Freeze Stuffed Pepper Soup?

Yes. For the best texture, freeze the soup without rice in freezer-safe containers for up to 2–3 months. Prepare fresh rice when reheating.

5. Why Is My Soup Too Thick?

Rice absorbs broth as it sits. Add warm beef broth or water until the soup reaches your preferred consistency.

6. Can I Use Different Bell Peppers?

Yes. Yellow, orange, red, and green bell peppers all work beautifully. Red, yellow, and orange peppers generally taste sweeter than green peppers.

7. Can I Make This Soup Ahead of Time?

Yes. Prepare the soup a day ahead and refrigerate it. Keep the cooked rice separate until serving.

8. How Do I Reheat Leftovers?

Reheat the soup in a saucepan over medium heat, stirring occasionally. Add a little broth if needed and heat leftovers thoroughly to 165°F (74°C).

9. Is This Soup Gluten-Free?

It can be gluten-free if you use certified gluten-free broth, Worcestershire sauce, and seasonings. Always check product labels.

10. What Makes This Soup Taste Like Stuffed Peppers?

The combination of ground beef, bell peppers, rice, tomatoes, onions, and herbs creates the familiar flavor of traditional stuffed bell peppers.

Serving Suggestions

Slow Cooker Stuffed Pepper Soup is hearty enough to serve as a complete meal.

Pair it with warm garlic bread, toasted sourdough, homemade dinner rolls, or buttery cornbread.

For a lighter meal, serve alongside a fresh green salad with lemon vinaigrette.

For extra richness, sprinkle shredded mozzarella or Parmesan cheese over each bowl.

This comforting soup is especially delicious on cold winter evenings when served hot with freshly baked bread.

Try this Cajun Shrimp and Crab Dirty Rice Seafood Skillet for a delicious, flavorful one-pan dinner packed with seafood goodness!

Servings and Nutrition

Servings: 6–8
Serving Size: Approximately 1½–2 cups, depending on final yield

Nutrition values are estimates based on approximately 7 servings and may vary with ingredient brands, beef fat content, and portion sizes. Optional toppings are not included.

Conclusion

Slow Cooker Stuffed Pepper Soup is a delicious, hearty, and satisfying comfort-food recipe packed with tender ground beef, colorful bell peppers, rice, and a rich tomato broth.

It combines the familiar flavors of homemade stuffed peppers with the convenience of slow cooking.

Whether you’re planning an easy family dinner, preparing meals ahead of time, or looking for a warming winter recipe, this soup is a wonderful addition to your meal rotation.

Warm up with this comforting Slow Cooker Stuffed Pepper Soup, loaded with hearty flavors and perfect for an easy family dinner!