If you’re looking for a cozy, hearty meal that practically makes itself, then this High Protein Stuffed Pepper Soup Recipe for the Slow Cooker is just what you need! There’s something about the combination of colorful bell peppers, savory ground meat, and rich tomato broth that makes me feel warm inside. It’s my go-to recipe for busy weeknights or when I have friends over for a casual dinner. Plus, it’s packed with protein, making it not only delicious but also nutritious!
This soup is perfect for any occasion—whether you need a comforting meal after a long day or a dish to share at a family gathering. The best part? You can throw everything in your slow cooker and let it do all the work while you relax or catch up on your favorite show.
Why You’ll Love This Recipe
- Simple Preparation: Just toss everything into the slow cooker and let it do its magic—no complicated steps here!
- Family-Friendly Delight: Kids and adults alike will love the vibrant flavors and textures of this hearty soup.
- Make-Ahead Convenience: Perfect for meal prep! Make a large batch and enjoy leftovers throughout the week.
- Delicious Flavor: The combination of spices and fresh ingredients creates a comforting taste that feels like home.

Ingredients You’ll Need
This High Protein Stuffed Pepper Soup features simple, wholesome ingredients that you probably already have in your kitchen. Let’s gather everything you need to create this delightful dish!
For the Soup Base
- 1 lb extra lean ground beef or turkey
- 0.5 cup yellow onion, diced (about ½ cup)
- 1 green bell pepper, diced
- 1 red bell pepper, diced
- 14 oz can diced tomatoes with juices (about 1.75 cup)
- 3 cups low sodium beef broth
- 1.75 cups tomato sauce
- 2 teaspoon dried oregano
- 1.5 teaspoon garlic powder
- Salt (to taste)
- Black pepper (to taste)
- 1 tablespoon Worcestershire sauce
For Added Texture
- 3 cups riced cauliflower (can be frozen)
- 540 mL can lentils, rinsed and drained
Optional Topping
- Shredded cheddar cheese (optional for topping)
Variations
One of the best things about this recipe is its flexibility! You can easily customize it to fit your taste preferences or dietary needs.
- Swap the protein: Use ground chicken or plant-based meat alternatives if you’re looking for a lighter option.
- Add more veggies: Toss in some spinach or zucchini for an extra boost of nutrition.
- Spice it up: If you like some heat, add a pinch of red pepper flakes or chopped jalapeños.
- Go vegetarian: Skip the meat entirely and use more lentils or beans as your protein source.
How to Make High Protein Stuffed Pepper Soup Recipe for the Slow Cooker
Step 1: Combine All Ingredients
In your trusty 6-quart slow cooker, start by adding your cooked ground beef or turkey along with the diced yellow onion, green bell pepper, red bell pepper, and diced tomatoes with their juices. Then pour in the low sodium beef broth and tomato sauce. Sprinkle in the dried oregano, garlic powder, salt and black pepper to taste, plus Worcestershire sauce. Finally, stir in your riced cauliflower and lentils. This step is essential because combining these ingredients allows all those lovely flavors to meld together during cooking.
Step 2: Set Your Slow Cooker
Once everything is combined nicely in your slow cooker, cover it up! Set it on HIGH for 3-4 hours or LOW for 6-8 hours. It’s important to give it enough time so that all the vegetables become tender and full of flavor.
Step 3: Final Touches
When the soup is done cooking and you can smell those delicious aromas wafting through your kitchen, check if you need to adjust any spices to suit your taste buds. This step allows you to personalize the soup just how you like it! Serve hot in bowls and sprinkle some shredded cheddar cheese on top if desired—it adds a wonderful creaminess. Enjoy every spoonful of this delightful High Protein Stuffed Pepper Soup!
Pro Tips for Making High Protein Stuffed Pepper Soup Recipe for the Slow Cooker
Creating a delicious and nutritious soup is all about the little details, so here are some tips to help you perfect your High Protein Stuffed Pepper Soup!
Use lean protein: Opting for extra lean ground beef or turkey not only keeps the dish healthier but also allows the flavors of the vegetables and seasonings to shine through without being overshadowed by excess fat.
Customize your veggies: Feel free to mix in your favorite vegetables like corn, zucchini, or carrots. This flexibility enhances the nutrition and can make use of what you have on hand.
Adjust the spices: Don’t hesitate to taste as you go! Adjusting seasonings towards the end of cooking ensures that you achieve the perfect balance of flavors tailored to your preference.
Make it ahead of time: This soup stores well in the refrigerator for up to 4 days or can be frozen for longer. Making it in advance not only saves time during busy weekdays but allows the flavors to meld beautifully.
Top it off: Adding shredded cheese, avocado, or fresh herbs right before serving can elevate the presentation and add an extra layer of flavor that makes each bowl irresistible.
How to Serve High Protein Stuffed Pepper Soup Recipe for the Slow Cooker
Serving your High Protein Stuffed Pepper Soup is just as fun as making it! With a few thoughtful touches, you can create an inviting dining experience that everyone will enjoy.
Garnishes
- Fresh parsley or cilantro: A sprinkle of freshly chopped herbs adds a pop of color and a burst of freshness that brightens up each serving.
- Sour cream or Greek yogurt: A dollop of either provides a creamy contrast that balances the savory flavors while adding a delightful tang.
- Lime wedges: A squeeze of lime juice right before enjoying gives a zesty kick and enhances all the flavors in this hearty soup.
Side Dishes
- Crusty bread: Serve with slices of warm crusty bread for dipping. The bread complements the soup’s texture and absorbs its rich flavors beautifully.
- Simple green salad: A light salad with mixed greens, cherry tomatoes, and a vinaigrette dressing offers a refreshing contrast to the warmth of the soup.
- Quinoa salad: A chilled quinoa salad with cucumbers, bell peppers, and a lemon dressing adds another layer of protein while providing an invigorating crunch.
- Rice or cauliflower rice: A side of brown rice or extra riced cauliflower can be served alongside for those who want even more substance in their meal.
Enjoy crafting this hearty dish and sharing it with friends or family—it’s sure to become a favorite around your table!

Make Ahead and Storage
This High Protein Stuffed Pepper Soup is perfect for meal prep! It stores well, allowing you to enjoy delicious meals throughout the week without any hassle.
Storing Leftovers
- Allow the soup to cool completely before transferring it to airtight containers.
- Store in the refrigerator for up to 4 days.
- Label containers with the date for easy tracking.
Freezing
- Portion the cooled soup into freezer-safe containers or bags.
- Leave some space at the top of containers/bags for expansion as it freezes.
- Freeze for up to 3 months for best quality.
Reheating
- Thaw frozen soup overnight in the refrigerator before reheating.
- Reheat on the stovetop over medium heat, stirring occasionally, until heated through.
- Alternatively, use a microwave-safe bowl and heat in short intervals, stirring between each, until hot.
FAQs
Here are some common questions about this recipe that might help you out!
Can I make this High Protein Stuffed Pepper Soup Recipe for the Slow Cooker vegetarian?
Absolutely! You can replace the ground meat with additional lentils or plant-based protein like crumbled tofu or tempeh. The soup will still be hearty and delicious!
How long can I store leftovers from the High Protein Stuffed Pepper Soup Recipe for the Slow Cooker?
Leftovers can be stored in the refrigerator for up to 4 days. If you want to keep it longer, consider freezing portions for up to 3 months!
Can I use other vegetables in this soup?
Yes! Feel free to add any of your favorite vegetables such as zucchini, corn, or even spinach. Just make sure to adjust cooking times if necessary.
Is this soup gluten-free?
Yes, this recipe is gluten-free as written! Just ensure that any substitutes or additional ingredients you use are also certified gluten-free.
Final Thoughts
I hope you find joy in making this High Protein Stuffed Pepper Soup! It’s not just a meal; it’s a hug in a bowl that brings warmth and comfort. Whether you’re prepping for a busy week or simply craving something hearty and nutritious, this recipe has got you covered. Enjoy every spoonful, and don’t hesitate to share your own variations or thoughts with me. Happy cooking!
Comfort Food
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Why You’ll Love This Recipe
This High Protein Stuffed Pepper Soup is not only delicious but also packed with nutrients. The combination of lean protein, veggies, and hearty flavors makes it a perfect meal for busy weeknights. Plus, the slow cooker does all the work for you, allowing you to come home to a warm, comforting bowl of soup!
Ingredients You’ll Need
- 1 lb extra lean ground beef or turkey
- 0.5 cup yellow onion, diced
- 1 green bell pepper, diced
- 1 red bell pepper, diced
- 14 oz can diced tomatoes with juices
- 3 cups low sodium beef broth
- 1.75 cups tomato sauce
- 2 teaspoons dried oregano
- 1.5 teaspoons garlic powder
- Salt (to taste)
- Black pepper (to taste)
- 1 tablespoon Worcestershire sauce
- 3 cups riced cauliflower (can be frozen)
- 540 mL can lentils, rinsed and drained
- Shredded cheddar cheese (optional for topping)
Variations
- Vegetarian Option: Substitute ground beef or turkey with more lentils or a plant-based meat alternative.
- Spicy Kick: Add diced jalapeños or a dash of hot sauce for some heat.
- Herb Infusion: Experiment with different herbs like thyme or basil for added flavor.
- Extra Veggies: Toss in other vegetables like zucchini or carrots for a nutrient boost.
How to Make
- In a 6-quart slow cooker, combine the cooked ground beef, diced yellow onion, green pepper, red pepper, diced tomatoes (with juices), beef broth, tomato sauce, oregano, garlic powder, salt, and pepper (to taste), Worcestershire sauce, riced cauliflower, and lentils.
- Cover and set the slow cooker to HIGH for 3-4 hours or LOW for 6-8 hours.
- Once the soup is cooked and the vegetables are tender, adjust the spices to your liking. Serve hot, topped with shredded cheese if desired.
Pro Tips
- Prep Ahead: Chop your vegetables the night before to save time in the morning.
- Adjust Consistency: If you prefer a thicker soup, reduce the amount of broth or add more riced cauliflower.
- Taste Test: Always taste and adjust seasonings before serving to ensure maximum flavor.
How to Serve
Serve the soup hot in bowls, garnished with shredded cheddar cheese for an extra layer of flavor. Pair with crusty bread or a side salad for a complete meal. This soup also makes for a great lunch the next day!
Make Ahead and Storage
- Make Ahead: You can prepare the ingredients the night before and store them in the fridge. Simply add them to the slow cooker in the morning.
- Storage: Store leftovers in an airtight container in the fridge for up to 4 days. The soup can also be frozen for up to 3 months. Just thaw and reheat before serving.
FAQs
Can I use frozen vegetables?
Yes, frozen riced cauliflower works well in this recipe. Just add it directly to the slow cooker without thawing.How do I make this soup low-carb?
You can omit the lentils and riced cauliflower or replace them with chopped spinach or kale.What can I use instead of beef broth?
Vegetable broth or chicken broth can be used as a substitute.
Final Thoughts
This High Protein Stuffed Pepper Soup Recipe for the Slow Cooker is a fantastic way to enjoy a comforting meal while boosting your protein intake. It’s versatile, easy to make, and perfect for meal prep. Give it a try and enjoy the deliciousness!
High Protein Stuffed Pepper Soup Recipe for the Slow Cooker
If you’re in search of a warm, hearty meal that requires minimal effort, this High Protein Stuffed Pepper Soup Recipe for the Slow Cooker is just what you need! With vibrant bell peppers, savory ground beef or turkey, and a rich tomato broth, this soup offers both comfort and nourishment. It’s perfect for busy weeknights or casual gatherings with friends. Simply throw all the ingredients into your slow cooker and let it work its magic while you relax. Packed with protein and flavor, this soup is sure to become a favorite in your household!
- Prep Time: 15 minutes
- Cook Time: 6 hours
- Total Time: 6 hours 15 minutes
- Yield: Serves approximately 6 people 1x
- Category: Main
- Method: Slow Cooker
- Cuisine: American
Ingredients
- 1 lb extra lean ground beef or turkey
- 0.5 cup yellow onion, diced
- 1 green bell pepper, diced
- 1 red bell pepper, diced
- 14 oz can diced tomatoes with juices
- 3 cups low sodium beef broth
- 1.75 cups tomato sauce
- 2 teaspoons dried oregano
- 1.5 teaspoons garlic powder
- Salt and black pepper to taste
- 3 cups riced cauliflower (can be frozen)
- 540 mL can lentils, rinsed and drained
Instructions
- In a 6-quart slow cooker, combine the cooked ground beef or turkey, diced onion, green bell pepper, red bell pepper, diced tomatoes (with juices), beef broth, tomato sauce, oregano, garlic powder, salt and pepper to taste. Add riced cauliflower and lentils.
- Cover the slow cooker and set it to HIGH for 3-4 hours or LOW for 6-8 hours until the vegetables are tender.
- Before serving, taste and adjust seasonings as needed. Serve hot in bowls.
Nutrition
- Serving Size: 1 bowl (about 300g)
- Calories: 290
- Sugar: 7g
- Sodium: 620mg
- Fat: 9g
- Saturated Fat: 3g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 36g
- Fiber: 10g
- Protein: 21g
- Cholesterol: 70mg




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