Keto Beef Pepper Steak Recipe is one of those meals that feels like a cozy weeknight dinner and yet tastes fancy enough for guests. It's packed with tender, juicy strips of sirloin steak tossed with crisp-tender bell peppers and onions, all bathed in a savory, slightly sweet sauce that fits perfectly into a keto lifestyle. Whether you’re grilling up a quick dinner after work or planning a low-carb meal to impress family, this recipe is a real winner. I love how it satisfies that craving for a comforting, hearty dish without piling on the carbs—you’re going to enjoy the delicious blend of textures and flavors every bite delivers.
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What Makes This So Good
This Keto Beef Pepper Steak Recipe strikes the perfect balance between rich, meaty goodness and fresh, vibrant veggies. The sauce is silky and well-seasoned, wrapping every strand of tender beef and pepper slice in a flavor hug you won't forget.
- Big Flavor, Minimal Fuss: You get tons of taste from simple ingredients, without spending hours cooking.
- Family-Friendly: Even picky eaters love the blend of tender meat and sweet bell peppers here.
- Simple Ingredients: Pantry staples like soy sauce and garlic shine, keeping your shopping list short.
- Works Any Night: Great for busy weekdays or casual weekend dinners—ready in under 30 minutes!
Ingredient Guide
Putting together this Keto Beef Pepper Steak Recipe starts with choosing the freshest ingredients you can find. Each element plays a role in building deep, mouthwatering flavor while keeping everything keto-friendly and satisfying.
- Sirloin Steak: Opt for thinly sliced sirloin for tender, quick cooking—fresh is best, but quality frozen works too.
- Coconut Oil or Olive Oil: I love coconut oil for its subtle tropical note, but olive oil keeps it classic.
- Bell Pepper: The sweetness here contrasts the beef perfectly. Choose vibrant red, yellow, or orange peppers for color and flavor.
- Onion: Sliced thin to soften quickly while adding natural sweetness and depth.
- Garlic and Ginger: Fresh and minced finely to release that punch of aroma and warm spice.
- Soy Sauce or Tamari: For that umami boost—tamari is great if you want gluten-free.
- Erythritol or Keto Sweetener: Just a touch to round out the sauce and balance savory elements.
- Salt & Pepper: Season according to taste but be mindful—soy sauce adds saltiness too.
- Green Onions: Adds a fresh crunch and a pop of color when garnished on top.
Quick Reminder: Full measurements are in the recipe card below.
How to Make Keto Beef Pepper Steak Recipe
Step 1 — Prep & Ready
Start by thinly slicing your sirloin steak against the grain—this keeps it tender and easy to chew. Slice your bell pepper and onion into uniform strips so they cook evenly. Mince the garlic and fresh ginger finely; these flavor bombs blend seamlessly when minced small. Preheat your skillet over medium-high heat and add coconut or olive oil—you want that pan hot enough to give the beef a nice sear, which locks in juices and flavor. Season your beef lightly with salt and pepper before cooking, knowing you’ll add more flavor later with the sauce.
Step 2 — Cook with Confidence
Cook the beef in batches if needed to avoid overcrowding the pan—that sizzling sound as the steak browns is one of my favorite cooking moments. Flip once when edges start getting crispy and caramelized. Remove the beef and set aside. In the same skillet, toss in your bell pepper, onion, and garlic. Stir them gently until they soften and start to release their sweet, fragrant aroma. Return the beef strips to the skillet now, then pour in soy sauce, erythritol, minced ginger, and sprinkle a little extra pepper. Give everything a good stir and cook together for 2-3 minutes so the sauce thickens slightly and coats all those tasty pieces perfectly. You’ll notice the sauce clings to the beef and veggies with a glossy finish—that’s when you know it’s ready!
Step 3 — Finish & Serve
Give everything a final taste—add a pinch more salt or pepper if your palate calls for it. Sprinkle freshly sliced green onions on top to add a crisp bite and bright color contrast. Serve your Keto Beef Pepper Steak hot from the pan so you capture all those juicy, tender textures and that cozy aroma—perfect as is or alongside a bed of cauliflower rice if you want a complete keto-friendly meal. This dish really shines right away, but leftovers reheat beautifully too.
Extra Helpful Tips
I’ve made this Keto Beef Pepper Steak Recipe many times, and a few tricks always help get the best results without fuss.
- Watch for This Sign: When browning your beef, look for crunchy edges and a deep golden color—this means flavor packed in every bite.
- Temperature Trick: Keep your heat medium-high but not smoking hot; you want a sear without burning the marinade ingredients.
- Prep-Ahead Option: Slice your beef and veggies the night before and keep them in the fridge—cooking goes so much faster!
- Avoid This Common Mistake: Don’t stir the beef too often while searing; let it develop that rich crust before flipping.
Serve & Enjoy
Easy Enhancements
Want to jazz up your Keto Beef Pepper Steak Recipe? Try adding a sprinkle of crushed red pepper flakes for a little heat or a dash of toasted sesame oil at the end for extra aroma. Fresh cilantro or basil leaves add a bright, herbaceous note that perfectly balances the sauce. For crunch, toasted sesame seeds or chopped peanuts on top work beautifully. I’ve even stirred in a few sliced mushrooms or snap peas for extra veggie goodness—feel free to make this your own!
Tasty Pairings
If you’re serving a complete keto meal, pair this pepper steak with cauliflower rice, sautéed garlic spinach, or even steamed broccoli with lemon zest. For drinks, a dry white wine or sparkling water with lime complements the savory flavors beautifully without overpowering them.
Quick Plating Tips
A simple white plate lets the rich colors of the beef and peppers pop. Spoon the dish neatly over your choice of low-carb base, then finish with a handful of chopped green onions and a wedge of lime on the side for serving. You’ll get great comments just from the inviting presentation, even if you whipped it up last minute!
Store, Freeze & Reheat
Fridge Storage
Store your cooked Keto Beef Pepper Steak in an airtight container in the fridge for up to 4 days. You might notice the peppers soften a little more over time, but the beef stays tender and juicy. Just give it a quick stir before reheating to refresh those textures.
Freezer Friendly?
This recipe freezes fairly well. Store in freezer-safe containers for up to 2 months. To avoid soggy veggies on thawing, try freezing just the cooked beef and sauce separately from the peppers and onions, adding the veggies fresh when reheating. Thaw overnight in the fridge before warming gently.
Reheat Like New
Reheat gently over low heat in a skillet, stirring occasionally until warmed through. This keeps your Keto Beef Pepper Steak moist and tender. Alternatively, microwave on medium power in short bursts, stirring between intervals to heat evenly without drying out the beef.
Keto Beef Pepper Steak Recipe FAQs
Absolutely! Flank steak, skirt steak, or even ribeye work well. Just be sure to slice thinly against the grain so it stays tender and cooks quickly.
It can be made gluten-free by using tamari instead of soy sauce, which is a naturally gluten-free alternative without sacrificing flavor.
Yes! Adding crushed red pepper flakes or a splash of hot sauce during cooking amps up the heat without changing the core flavors.
This recipe is naturally dairy-free, so no changes needed. Just be sure your soy sauce or tamari doesn’t contain any hidden dairy ingredients.
Final Flavor Thoughts
I hope this Keto Beef Pepper Steak Recipe becomes one of your go-to low-carb dinners! It’s easy enough to fit into a busy schedule but special enough to feel like a treat. If you give it a try, I’d love to hear how it turned out—drop a star rating or share your favorite twists in the comments below. Next time, try swapping bell peppers for poblano or adding mushrooms for a fun variation. Happy cooking!
Print📖 Recipe
Keto Beef Pepper Steak Recipe
This Keto Beef Pepper Steak is a quick and flavorful low-carb dinner option featuring tender sirloin steak, colorful bell peppers, and onions all cooked in a savory soy-ginger sauce. Perfect for keto and gluten-free diets, this stir-fry style dish comes together in under 30 minutes and is garnished with fresh green onions for an extra burst of flavor.
- Prep Time: 10 minutes
- Cook Time: 15 minutes
- Total Time: 25 minutes
- Yield: 3-4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: American
- Diet: Keto
Ingredients
Beef and Marinade
- 1 lb (450g) sirloin steak, sliced thinly
- ¼ cup soy sauce (or tamari for gluten-free)
- 1 tablespoon erythritol or another keto-friendly sweetener
- 1 teaspoon ginger, minced
- Salt and pepper to taste
Vegetables
- 1 bell pepper, sliced
- 1 medium onion, sliced
- 3 cloves garlic, minced
Cooking Fat and Garnish
- 2 tablespoons coconut oil (or olive oil)
- Green onions, sliced (for garnish)
Instructions
- Brown the Beef: Heat the coconut oil in a large skillet over medium-high heat. Add the thinly sliced sirloin steak and cook for 3-5 minutes until nicely browned on all sides. Remove the beef from the skillet and set aside to rest.
- Sauté Vegetables: In the same skillet, add the sliced bell pepper, onion, and minced garlic. Sauté for about 4-5 minutes until the vegetables are tender but still crisp, stirring occasionally to prevent burning.
- Combine and Simmer: Return the browned beef to the skillet with the sautéed vegetables. Stir in the soy sauce or tamari, erythritol, minced ginger, salt, and pepper. Cook everything together for an additional 2-3 minutes, allowing the flavors to meld and the sauce to heat through evenly.
- Serve and Garnish: Remove from heat and transfer to serving plates. Garnish with freshly sliced green onions for a fresh and vibrant finish. Serve immediately while hot.
Notes
- For a gluten-free version, use tamari instead of soy sauce.
- Adjust sweetness by varying the amount of erythritol or substituting with another keto-approved sweetener.
- Sirloin works well for this recipe, but you can substitute with flank or ribeye steak slices if preferred.
- Make sure to slice the steak thinly against the grain for tender bites.
- This recipe can be doubled easily to serve more people.
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