Slow Cooker Stuffed Pepper Soup

This hearty slow cooker meal provides all the flavors of traditional stuffed peppers without the effort of stuffing each vegetable. It is a filling dinner option that works well for large groups or meal prep.

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List of ingredients

  • 1 pound lean ground beef – browned and drained for better texture.
  • 1 medium yellow onion – diced finely for a mellow flavor.
  • 1 medium red bell pepper – chopped into bite-sized pieces.
  • 1 medium green bell pepper – chopped into bite-sized pieces.
  • 2 (15 oz) cans tomato sauce – provides a thick, acidic base.
  • 1 (10 oz) can rotel tomatoes with green chilies – do not drain.
  • 1 tablespoon Worcestershire sauce – adds a savory umami depth.
  • 1 tablespoon brown sugar – balances the acidity of the tomatoes.
  • 4 cups low sodium beef broth – the primary liquid base.
  • 2 cups water – adjusts the soup consistency.
  • 1 ½ teaspoons ground black pepper – for a mild spicy kick.
  • ½ teaspoon salt – enhances all existing flavors.
  • 1 teaspoon dried basil – adds a classic herbal note.
  • 1 teaspoon dried oregano – provides earthy Mediterranean flavor.
  • 1 teaspoon dried parsley – adds a fresh, herbal finish.
  • ½ teaspoon mustard powder – adds a subtle tang.
  • 1 teaspoon paprika – gives the soup a rich color and smokiness.
  • 1 ½ cups cooked white rice – fully cooked and stirred in at the end.

step-by-step instructions

  1. Brown the Meat: Heat a large skillet over medium heat and add the ground beef and diced onions. Cook for 5-7 minutes until the beef is completely browned, then drain the excess grease and transfer the mixture to a 6-quart slow cooker.
  2. Combine Ingredients: Stir in the red and green bell peppers, tomato sauce, undrained rotel tomatoes, Worcestershire sauce, brown sugar, beef broth, water, black pepper, salt, basil, oregano, parsley, mustard powder, and paprika. Mix all components until they are well combined.
  3. Slow Cook: Place the lid on the slow cooker and cook on high for 2½ to 3½ hours, or on low for 6 to 8 hours. The soup is ready when the bell peppers have become soft.
  4. Finish with Rice: Approximately 15 minutes before the cooking time is complete, stir in the fully cooked white rice. Replace the lid and continue cooking for the final 15 minutes to heat the rice through.

Customizing the Flavor and Ingredients

Using Plant-Based Meat Alternatives

Replace the lean ground beef with an equal amount of cooked lentils or a plant-based meat substitute. If using lentils, ensure they are pre-cooked to avoid an overly soft texture. Adjust the broth to vegetable broth to maintain a consistent flavor profile.

Substituting Ground Turkey or Chicken

Ground turkey or chicken can be used as a leaner alternative to beef. Since these meats have a milder flavor, you may want to slightly increase the amount of paprika or mustard powder. Brown these meats in the skillet exactly as you would with beef.

Incorporating Different Bell Pepper Colors

While red and green peppers are traditional, yellow and orange bell peppers add a sweeter profile to the soup. You can use a mixture of all four colors for a more vibrant appearance. The cooking time remains the same regardless of the pepper color chosen.

Adjusting the Spice Level

To increase the heat, use a variety of Rotel tomatoes with extra hot chilies or add a pinch of cayenne pepper. If you prefer a milder soup, choose a mild version of the canned tomatoes. You can also add diced fresh jalapeños for a brighter, sharper heat.

Essential Cooking Techniques for Best Results

The Importance of Browning Ground Beef

Browning the beef in a skillet before adding it to the slow cooker is crucial for flavor development through the Maillard reaction. This process also allows you to drain excess fat, which prevents the soup from having an oily surface. Without this step, the meat may have a boiled texture rather than a seared one.

Why You Should Pre-Cook the Rice

Adding uncooked rice directly to a slow cooker often results in a gummy or mushy texture because the rice absorbs too much liquid. By adding pre-cooked rice at the very end, the grains remain distinct and fluffy. This method ensures the soup maintains its intended thickness.

Controlling the Slow Cooker Temperature

Cooking on low for 6-8 hours allows the flavors to meld more deeply and results in very tender vegetables. If you are short on time, the high setting is efficient but requires more frequent checking to ensure the liquid does not evaporate too quickly. Always keep the lid closed to retain heat.

Managing Liquid Levels

The combination of beef broth and water creates a balanced consistency that is neither too thin nor too thick. If you prefer a more stew-like consistency, reduce the water by one cup. Conversely, if the soup becomes too thick during the long cook time, stir in a small amount of additional broth.

Serving and Presentation Ideas

Adding Melted Cheese Toppings

Adding shredded cheddar, Monterey Jack, or mozzarella to each bowl transforms the soup into a true stuffed pepper experience. For the best results, sprinkle the cheese on immediately after serving so it melts into the hot liquid. This adds a creamy texture that complements the acidity of the tomatoes.

Pairing with Crusty Breads

Serve this soup with a side of garlic bread, a toasted baguette, or warm cornbread. The bread helps soak up the savory broth and adds a necessary crunch to the meal. A slice of buttered sourdough is particularly effective at balancing the flavors of the soup.

Using Fresh Herb Garnishes

Freshly chopped parsley or cilantro sprinkled on top adds a pop of color and a bright, fresh taste. These herbs cut through the richness of the beef and tomato sauce. Adding them just before serving ensures the herbs stay vibrant and fragrant.

Complementing with Creamy Elements

A dollop of sour cream or sliced avocado on top of the soup adds a cooling element that balances the spices. These additions provide a velvety mouthfeel that enhances the overall dining experience. They are especially useful if you have increased the heat of the soup with extra chilies.

Storage and Long-Term Preservation

Safe Refrigeration Practices

Store any leftover soup in an airtight container and place it in the refrigerator immediately after it has cooled. The soup will remain fresh and safe to eat for up to 3 days. Ensure the container is sealed tightly to prevent the soup from absorbing other odors in the fridge.

Freezing the Soup Base

To freeze this recipe, omit the rice during the initial cooking process. Freeze the soup base in freezer-safe bags or containers for up to 3 months. Adding rice before freezing leads to mushy grains upon reheating because the rice continues to absorb liquid during the freezing and thawing process.

Proper Thawing Procedures

Thaw frozen soup slowly in the refrigerator for 24 hours before reheating. This prevents the ingredients from breaking down and ensures an even heating process. Avoid thawing the soup on the counter at room temperature to maintain food safety standards.

Reheating and Refreshing Leftovers

Quick Microwave Reheating

When using a microwave, heat the soup in 60-second intervals, stirring well between each session. This ensures that the beef and vegetables are heated evenly and prevents hot spots. If the soup has thickened too much in the fridge, stir in a tablespoon of water before heating.

Slow Cooker Reheating

For larger quantities of leftovers, place the soup back into the slow cooker on the high setting for 2 to 3 hours. This gentle heating method preserves the texture of the vegetables. Stir occasionally to prevent the bottom from scorching.

Adjusting Consistency After Reheating

Leftover soups often thicken as the rice and vegetables continue to absorb the liquid. After reheating, check the consistency and add a splash of beef broth or water if the soup has become too dense. A quick stir will reintegrate the flavors and restore the original texture.

Planning and Make-Ahead Advice

Prepping Vegetables in Advance

You can dice the onions and chop the bell peppers up to two days before you plan to cook. Store them in separate airtight containers or a single bag in the refrigerator. This reduces the active prep time on the day of cooking to just a few minutes.

Cooking Grains Early

Prepare the white rice a day in advance and store it in the refrigerator. Cold rice is actually easier to stir into the hot soup without breaking the grains. Simply ensure the rice is stored in a sealed container to keep it from drying out.

Browning Meat the Day Before

The ground beef and onions can be browned and drained 24 hours ahead of time. Once cooled, store the mixture in the refrigerator. When you are ready to start the slow cooker, simply add the cold meat mixture along with the other ingredients.

Troubleshooting Common Issues

How to Fix a Watery Consistency

If the soup is too thin, you can simmer it on the high setting with the lid slightly ajar to allow some liquid to evaporate. Alternatively, you can stir in a small cornstarch slurry (equal parts cornstarch and cold water) and cook for another 15 minutes. This will thicken the base without altering the flavor.

Preventing Gummy Rice

Gummy rice occurs when the grains are overcooked or added too early in the process. To prevent this, always use fully cooked rice and only stir it in during the final 15 minutes of cooking. Ensure the rice is not overcooked during its initial preparation.

Balancing Too Much Acidity

If the tomato sauce and Rotel make the soup taste too acidic, add an extra teaspoon of brown sugar. Stir it in slowly and taste after a few minutes of cooking. The sugar neutralizes the sharp tang of the tomatoes, creating a smoother flavor profile.

Frequently Asked Questions

Can I use a different type of rice?

You can use brown rice, but it must be fully cooked before being added to the soup. Since brown rice has a firmer texture, it holds up well in the slow cooker. Avoid adding uncooked brown rice as it requires significantly more liquid and time than white rice.

Is this soup suitable for a freezer meal?

Yes, this soup is excellent for freezer meals as long as the rice is excluded. You can prep all the ingredients except the rice, freeze them in a bag, and then dump them into the slow cooker. Simply cook your rice separately and add it at the end of the cooking cycle.

Can I add other vegetables?

Adding corn, carrots, or green beans is a great way to increase the nutritional value of the soup. Add hard vegetables like carrots at the beginning of the cook time. Softer vegetables like corn can be added along with the rice in the final 15 minutes.

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Slow Cooker Stuffed Pepper Soup

Slow Cooker Stuffed Pepper Soup


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  • Author: Lora Marie Bennett
  • Total Time: 3 hours 10 minutes
  • Yield: 8 servings
  • Diet: General

Description

Capture the flavor of stuffed peppers but leave out all of the work. Make this hearty and flavorful crock pot stuffed pepper soup for a simple but filling dinner the family will love.


Ingredients

  • 1 pound lean ground beef
  • 1 medium yellow onion (diced)
  • 1 medium red bell pepper (chopped)
  • 1 medium green bell pepper (chopped)
  • 2 (15 oz) cans tomato sauce
  • 1 (10 oz) can rotel tomatoes with green chilies
  • 1 tablespoon Worcestershire sauce
  • 1 tablespoon brown sugar
  • 4 cups low sodium beef broth
  • 2 cups water
  • 1 ½ teaspoons ground black pepper
  • ½ teaspoon salt
  • 1 teaspoon dried basil
  • 1 teaspoon dried oregano
  • 1 teaspoon dried parsley
  • ½ teaspoon mustard powder
  • 1 teaspoon paprika
  • 1 ½ cups cooked white rice

Instructions

  1. Brown: In a large skillet over medium heat, add ground beef and onions. Cook until beef is browned. About 5-7 minutes. Drain and add to a 6-quart slow cooker.
  2. Combine: Add bell peppers, tomato sauce, rotel tomatoes, Worcestershire sauce, brown sugar, beef broth, water, black pepper, salt, basil, oregano, parsley, mustard powder, and paprika. Mix until well combined.
  3. Slow Cook: Cover and cook on high for 2½-3½ hours or on low for 6-8 hours. Cook until bell peppers are soft.
  4. Finish: Fifteen minutes before cook time is up, add cooked rice and mix until well combined. Cover and continue to cook for 15 minutes.

Notes

Use fully cooked ground beef to avoid making the soup greasy. Do not cook rice in the soup as it can become mushy. If freezing, keep the rice separate from the soup.

  • Prep Time: 10 minutes
  • Cook Time: 3 hours
  • Category: Soup
  • Method: Slow Cooking
  • Cuisine: American

Nutrition

  • Serving Size: 1 serving
  • Calories: 168 kcal
  • Sugar: 3 g
  • Sodium: 437 mg
  • Fat: 6 g
  • Saturated Fat: 2 g
  • Unsaturated Fat: 3.3 g
  • Trans Fat: 0.4 g
  • Carbohydrates: 14 g
  • Fiber: 1 g
  • Protein: 15 g
  • Cholesterol: 37 mg

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