Keto Stuffed Bell Peppers (Easy Low-Carb Dinner)

If you’re looking for a satisfying low-carb comfort meal, these Keto Stuffed Bell Peppers are a fantastic option. They’re filled with seasoned ground beef, creamy tomato sauce, and cauliflower rice, then topped with melted mozzarella cheese and baked until perfectly tender.

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This recipe is simple, hearty, and ideal for anyone following a keto or low-carb lifestyle. Traditional stuffed peppers usually contain rice, but this version swaps it out for cauliflower rice to keep the carbs low while still delivering the same comforting texture.

Even better? These peppers come together in under an hour, making them perfect for weeknight dinners, meal prep, or even a cozy weekend meal.

Why You’ll Love These Keto Stuffed Bell Peppers

There’s a reason stuffed peppers have been a classic dinner recipe for decades. They’re filling, customizable, and packed with flavor. This keto version keeps everything you love while making it low-carb friendly.

Here’s why this recipe stands out:

1. Perfect for the Keto Lifestyle
Instead of regular rice, this recipe uses cauliflower rice, which dramatically reduces the carb count while keeping the filling hearty and satisfying.

2. High in Protein
The ground beef provides plenty of protein, helping keep you full longer.

3. Rich and Creamy Flavor
The combination of tomato sauce and sour cream creates a creamy, savory filling that pairs beautifully with the sweet flavor of bell peppers.

4. Easy to Customize
You can easily swap the ground beef for ground turkey, sausage, chicken, or pork depending on your preference.

5. Great for Meal Prep
These stuffed peppers store well and reheat beautifully, making them perfect for leftovers or make-ahead meals.

The Magic of Cauliflower Rice

Cauliflower has become one of the most popular vegetables in the low-carb and keto world—and for good reason. It’s incredibly versatile and can mimic the texture of many high-carb ingredients.

With cauliflower, you can create:

• Cauliflower mashed “potatoes”
• Low-carb pizza crust
• Cauliflower fried rice
• Creamy soups
• And of course, cauliflower rice for stuffed peppers

In this recipe, cauliflower rice replaces traditional rice while keeping the filling hearty and flavorful. It absorbs the savory juices from the meat and sauce, making it almost impossible to miss the original rice version.

Ingredients

Here’s what you’ll need to make these Keto Stuffed Bell Peppers. The ingredient list is simple and easy to find at most grocery stores.

Ground Beef
Use either 90/10 or 80/20 ground beef. Both work well and provide rich flavor.

Cauliflower Rice
Frozen cauliflower rice is the easiest option and saves prep time.

Bell Peppers
Green bell peppers contain slightly fewer carbs than red or yellow peppers, but you can use any variety you prefer.

Tomato Sauce
Choose a no-sugar-added tomato sauce to keep the recipe keto friendly.

Sour Cream
Full-fat sour cream adds richness and creaminess to the filling.

Shredded Mozzarella Cheese
Mozzarella melts beautifully and adds a delicious cheesy topping.

Seasonings

• Parsley
• Garlic powder
• Salt
• Black pepper

These simple spices enhance the savory flavor of the filling without overpowering the dish.

How to Make Keto Stuffed Bell Peppers

Making these stuffed peppers is straightforward and beginner-friendly. Here’s an overview of the process.

Step 1: Prepare the Cauliflower Rice

Steam the frozen cauliflower rice according to the package directions. Once cooked, place it in a mesh strainer and press out as much moisture as possible.

Removing excess liquid is extremely important. If you skip this step, the filling can become watery during baking.

Use paper towels or a clean kitchen towel to press the cauliflower until it’s mostly dry.

Step 2: Cook the Ground Beef

In a large skillet over medium heat, cook the ground beef until fully browned. Break it apart as it cooks to create small crumbles.

Once cooked, drain any excess grease from the pan.

Step 3: Make the Filling

In the same skillet or a large mixing bowl, combine:

• Cooked ground beef
• Prepared cauliflower rice
• Tomato sauce
• Sour cream
• Parsley
• Garlic powder
• Salt and pepper

Mix everything together until the filling is well combined and creamy. Taste and adjust the seasoning if necessary.

Step 4: Prepare the Bell Peppers

Wash the bell peppers and cut off the tops. Remove the seeds and white membranes inside.

You can leave the peppers raw for a slightly firmer texture or blanch them briefly in boiling water if you prefer softer peppers.

Once prepared, fill each pepper with the beef and cauliflower mixture.

Step 5: Bake the Stuffed Peppers

Place the filled peppers upright in a baking dish or muffin pan. A muffin pan works surprisingly well for keeping them stable while baking.

Bake them in a 350°F (175°C) oven for about 20–25 minutes.

Remove the dish from the oven, sprinkle mozzarella cheese over each pepper, then return them to the oven for another 5–10 minutes until the cheese is melted and slightly golden.

For extra browning, you can briefly place the peppers under the broiler.

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Recipe Tips for Perfect Keto Stuffed Bell Peppers

A few simple tips can make a big difference when preparing these Keto Stuffed Bell Peppers. Follow these suggestions to ensure your peppers turn out flavorful and perfectly textured every time.

Remove Excess Moisture from the Cauliflower

This step is extremely important. Cauliflower naturally contains a lot of water, and if the moisture isn’t removed, your filling may become watery during baking.

After steaming the cauliflower rice:

1. Transfer it to a mesh strainer.
2. Place paper towels on top.
3. Press firmly to release as much liquid as possible.
4. Repeat with dry paper towels until the cauliflower is mostly dry.

This simple step helps the filling stay thick, rich, and creamy.

Choose the Right Bell Peppers

Green bell peppers are commonly used because they contain slightly fewer carbs than other varieties. However, red, yellow, or orange peppers can also work well if you prefer a sweeter flavor.

Bell peppers are available year-round, but their peak season runs from summer through early fall, when they’re usually the most flavorful.

Don’t Overcook the Peppers

The baking time allows the peppers to soften while keeping their structure. If you like extremely tender peppers, you can briefly blanch them in boiling water before stuffing.

Just a few minutes is enough. Be careful not to cook them too long or they may become too soft and difficult to fill.

Broil the Cheese for Extra Flavor

Once the mozzarella cheese melts, you can place the peppers under the broiler for a minute or two. This creates a lightly golden, bubbly topping that adds even more flavor.

Frequently Asked Questions

How long do stuffed bell peppers last in the refrigerator?

Cooked stuffed peppers can be stored in an airtight container in the refrigerator for up to 3 days. Reheat them in the oven or microwave until warmed through.

Can you freeze stuffed bell peppers?

Yes! These peppers freeze very well.

Allow them to cool completely, then place them in a freezer-safe container. They can be frozen for up to 3 months.

To reheat, thaw overnight in the refrigerator and warm them in the oven until heated through.

Can stuffed peppers be made ahead of time?

Absolutely. You can prepare the peppers and filling earlier in the day, store them in the refrigerator, and bake them later when you’re ready for dinner.

This makes the recipe great for meal prep or busy weeknights.

Can you cook stuffed peppers in a slow cooker?

Yes, stuffed peppers can easily be cooked in a slow cooker.

Prepare the filling and stuff the peppers as usual. Place them in the slow cooker and cook on low for about 4 hours.

Add the cheese during the last 10–15 minutes so it melts nicely.

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