If you’re searching for a simple, hands-off dinner that’s bursting with flavor, these Keto Slow Cooker Mexican Stuffed Peppers are exactly what you need. Perfect for Taco Tuesday or any night of the week, this recipe is cheesy, satisfying, and completely low-carb and gluten-free.
Imagine tender bell peppers stuffed with a savory blend of ground beef, riced cauliflower, zesty lime, fresh cilantro, and homemade Mexican seasoning—all cooked slowly to perfection in a slow cooker. No browning, no sautéing, just dump, cover, and let the magic happen.
I’ve loved stuffed peppers for as long as I can remember. As a kid, they were always a meal I looked forward to. Over time, I began experimenting with different flavor profiles—Italian, Greek, Cajun—and eventually discovered that a Mexican twist could make this classic dish even more exciting, especially for those following a low-carb lifestyle.
Traditional Mexican favorites like tacos, enchiladas, and tostadas often come loaded with carbs, making them tricky for keto eaters. That’s where this recipe comes in: a low-carb, gluten-free version that delivers all the rich flavors you love, without the carbs you don’t.
By swapping regular rice with riced cauliflower, using a homemade taco seasoning blend free from hidden sugars, adding a bright splash of lime juice, and finishing it with a generous topping of melted cheese, these stuffed peppers become the ultimate keto comfort food.
The best part? You don’t need to stand over the stove. With the slow cooker, you get perfectly cooked peppers and juicy beef with minimal effort. It’s an effortless meal prep winner and a delicious way to enjoy Mexican-inspired flavors without any guilt.
Ingredients
Here’s what you’ll need to make these Keto Slow Cooker Mexican Stuffed Peppers:
- 1 pound grass-fed ground beef
- 1 teaspoon pink salt
- ½ teaspoon freshly cracked black pepper
- 2 cups riced cauliflower
- 1 lime, zested and juiced
- 1 cup salsa (homemade or store-bought)
- ¼ cup fresh cilantro leaves, chopped, plus extra for garnish
- 2 tablespoons Mexican seasoning blend
- 6 ounces shredded cheddar cheese, divided
- 6 large bell peppers, tops cut, stemmed, and seeds removed
- ½ cup sour cream (optional, for serving)
Pro tip: For a little extra kick, add diced jalapeños or a pinch of chili powder to your filling.
Instructions
Making these stuffed peppers is easy, and you don’t need any pre-cooking steps. Follow this simple method:
- Lightly coat the inside of a 6-quart slow cooker with olive or avocado oil spray.
- In a large mixing bowl, combine ground beef, salt, pepper, riced cauliflower, 1 cup of cheese, lime zest and juice, salsa, cilantro, and Mexican seasoning blend. Mix until fully combined.
- Spoon the beef mixture evenly into the hollowed bell peppers.
- Arrange the stuffed peppers in the slow cooker. Cover and cook on low for 3–4 hours, or high for 2–3 hours, until the peppers are tender and the beef is thoroughly cooked.
- Uncover, sprinkle the remaining ½ cup of cheese over the top, cover again, and cook on low for an additional 10–15 minutes until the cheese is melted and gooey.
- Serve immediately, drizzled with sour cream and garnished with extra chopped cilantro if desired.
Substitutions
Don’t have all the ingredients on hand? No problem:
- Ground Meat: Swap ground beef with ground chicken, pork, turkey, or a plant-based substitute.
- Cheese: Use any melting cheese you prefer, such as Monterey Jack, pepper jack, or a Mexican blend.
- Cauliflower Rice: For non-keto diets, feel free to substitute with cooked white or brown rice.
Equipment
You’ll only need a few basic kitchen tools:
- Slow cooker (6-quart or larger)
- Large mixing bowl
- Measuring cups and spoons
- Silicone or wooden spoon for mixing
Storage Tips
Leftovers are easy to store:
- Refrigerate in an airtight container for up to 4 days.
- Freeze for up to 4 months. To reheat, thaw overnight in the fridge and cook according to the original instructions. A meat thermometer can ensure the internal temperature reaches 145°F.
Top Tips for Success
- This recipe doubles beautifully for meal prep—cook, freeze, and enjoy on busy days.
- Add extra flavor by topping with avocado slices or a squeeze of fresh lime before serving.
- For more spice, mix in diced jalapeños or a few drops of hot sauce directly into the filling.
FAQ About Keto Slow Cooker Mexican Stuffed Peppers
Do I need to cook the beef before stuffing the peppers?
Nope! The slow cooker does all the work. The beef cooks safely while the peppers soften over 2–4 hours, depending on your slow cooker settings.
Can I freeze these stuffed peppers?
Absolutely. This recipe is perfect for meal prep. Freeze in an airtight container for up to 4 months. When ready to eat, thaw overnight in the refrigerator and cook according to instructions. Use a meat thermometer to ensure the center reaches 145°F.
How long do leftovers last?
Store leftovers in an airtight container in the fridge for up to 4 days. Reheat gently in the microwave or oven until warmed through.
Keto Slow Cooker Mexican Stuffed Peppers: A Low-Carb Delight
- Total Time: 3 hrs 30 min
Ingredients
1 pound grass-fed ground beef
1 teaspoon pink salt
½ teaspoon freshly cracked black pepper
2 cups riced cauliflower
1 lime, zested and juiced
1 cup salsa (homemade or store-bought)
¼ cup fresh cilantro leaves, chopped, plus extra for garnish
2 tablespoons Mexican seasoning blend
6 ounces shredded cheddar cheese, divided
6 large bell peppers, tops cut, stemmed, and seeds removed
½ cup sour cream (optional, for serving)
Instructions
- Lightly coat the inside of a 6-quart slow cooker with olive or avocado oil spray.
- In a large mixing bowl, combine ground beef, salt, pepper, riced cauliflower, 1 cup cheese, lime zest and juice, salsa, cilantro, and Mexican seasoning blend. Mix thoroughly.
- Spoon the mixture evenly into each bell pepper cavity.
- Place the stuffed peppers in the slow cooker. Cover and cook on low for 3–4 hours or high for 2–3 hours, until peppers are tender and beef is fully cooked.
- Uncover and sprinkle the remaining ½ cup of cheese on top. Cover again and cook on low for 10–15 minutes until the cheese melts.
- Serve immediately, topped with sour cream and extra cilantro if desired.
Notes
- This recipe is naturally low-carb and gluten-free. Double-check all packaged ingredients if following a strict diet.
- For extra flavor, try adding diced jalapeños or a pinch of chili powder.
- Perfect for meal prep: freeze fully prepared peppers before cooking, then thaw overnight and cook in the slow cooker.
- Ensure even cooking by placing the peppers snugly but not overcrowded in your slow cooker.
- Prep Time: 15 min
- Cook Time: 3 hrs 15 min
