Keto Beef and Broccoli Stir-Fry Recipe is a fantastic low-carb, high-flavor meal that's perfect when you're craving something hearty but healthy. It’s the kind of dish you can whip up on a busy weeknight and still feel like you’re treating yourself to something special. The combination of tender flank steak and crisp broccoli tossed in a savory sesame sauce hits all the right notes — peppery, slightly sweet, with an inviting aroma that fills your kitchen as it cooks. Whether you’re new to keto or just looking for a simple, crowd-pleasing stir-fry, you’ll love how easy and satisfying this recipe is.
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What Makes This So Good
I love this Keto Beef and Broccoli Stir-Fry Recipe because it masterfully balances flavor, nutrition, and speed. The soy and sesame sauce brings bold umami notes, while the tender steak contrasts beautifully with crisp broccoli. Plus, you don’t have to spend hours chopping or marinating—everything comes together quickly with straightforward steps.
- Big Flavor, Minimal Fuss: Each bite bursts with savory, slightly nutty taste without complicated prep or exotic ingredients.
- Family-Friendly: Whether you’re cooking for keto lovers or curious eaters, it’s a dish almost everyone enjoys.
- Simple Ingredients: Basic pantry staples and fresh produce combine for a clean, healthy meal.
- Works Any Night: Perfect for a quick dinner or meal prep when you want something satisfying and nourishing.
Ingredient Guide
Selecting the right ingredients helps your Keto Beef and Broccoli Stir-Fry Recipe shine. I find that a few thoughtful swaps or quality picks really elevate the dish.
- Flank Steak: Look for thin slices to get tender bursts of beef flavor; slicing against the grain ensures it won’t be chewy.
- Broccoli Florets: Fresh, bright green crowns with some stem attached work best for that crisp-tender texture.
- Coconut Oil or Olive Oil: Both add healthy fats; coconut oil adds a subtle richness that's perfect for keto cooking.
- Soy Sauce (or Tamari): Choose gluten-free tamari for a clean taste without wheat, especially if you’re sensitive.
- Sesame Oil: Just a drizzle adds deliciously nutty depth—don’t skip it!
- Fresh Garlic & Ginger: These aromatics provide a cozy, zesty kick that brings the whole dish alive.
- Erythritol (Optional): A touch balances the savory sauce without adding carbs, but you can leave it out if you prefer.
- Sesame Seeds & Green Onions: These garnishes add a lovely crunch and freshness right at serving time.
Quick Reminder: Full measurements are in the recipe card below.
How to Make Keto Beef and Broccoli Stir-Fry Recipe
Step 1 — Prep & Ready
Start by slicing your flank steak thinly against the grain—that little trick keeps the meat tender, so you don’t get chewy bites. Rinse and chop your broccoli into bite-sized florets, then mince fresh garlic and ginger. Before you start cooking, have all your ingredients measured and within reach. Preheat your skillet or wok on medium-high heat and add the coconut oil—once you see it shimmering, you’re ready to go. This ensures your beef sizzles instantly, locking in that rich, beefy aroma.
Step 2 — Cook with Confidence
Toss your sliced beef into the hot oil and watch as it browns beautifully, developing crispy edges in just 3-4 minutes. You'll notice a delicious caramelized aroma that’s hard to resist. Remove the beef and set it aside—don’t overcrowd the pan or it’ll steam instead of sear. Next, add your broccoli florets along with garlic and ginger. Stir-fry vigorously for about 3-4 minutes until the broccoli is vibrant green and tender-crisp. Return the beef to the pan, pour in soy sauce, sesame oil, and a bit of erythritol if you’re using it. Stir everything together for 2 more minutes—this builds a glossy, flavorful sauce that coats every bite.
Step 3 — Finish & Serve
Once your stir-fry is beautifully sauced and everything is piping hot, turn off the heat and sprinkle with sesame seeds and sliced green onions. These little touches add a fresh crunch and make the dish look as amazing as it tastes. Serve immediately so you can enjoy the contrast of tender beef and crisp vegetables, all wrapped in that luscious keto-friendly sauce.
Extra Helpful Tips
I’ve found a few simple tricks make a big difference with this Keto Beef and Broccoli Stir-Fry Recipe. Keeping the pan hot and watching cooking times closely guarantees tender, flavorful results without sogginess.
- Watch for This Sign: When your beef edges turn golden brown with slight crispiness, it’s perfect to remove and set aside.
- Temperature Trick: Stir-fry on medium-high heat to get that fast cooking without steaming the broccoli.
- Prep-Ahead Option: You can slice your beef and chop broccoli earlier and store separately for quick assembly later.
- Avoid This Common Mistake: Don’t add too much sauce; keep it just enough to coat—too much can make the dish watery and less appetizing.
Serve & Enjoy
Easy Enhancements
Add a sprinkle of crushed red pepper flakes if you want a little heat, or squeeze a wedge of fresh lime over the top for brightness. A drizzle of toasted sesame oil right before serving intensifies the nutty aroma. For a richer sauce, stir in a splash of coconut aminos instead of soy sauce. These tweaks keep the Keto Beef and Broccoli Stir-Fry Recipe fresh and exciting every time you make it.
Tasty Pairings
This stir-fry pairs wonderfully with cauliflower rice or shirataki noodles to keep the meal keto-friendly and filling. A simple cucumber salad with sesame seeds and rice vinegar adds crisp contrast. If you’re sipping, a light green tea or sparkling water with a lemon wedge complements the savory flavors beautifully.
Quick Plating Tips
Serve your stir-fry on a wide, shallow plate to show off the colorful broccoli and tender beef. Garnish with a final sprinkle of toasted sesame seeds and thinly sliced green onions for a pop of color. If you’re feeling fancy, a small pile of microgreens on top adds vibrant freshness and some height to your presentation.
Store, Freeze & Reheat
Fridge Storage
Your Keto Beef and Broccoli Stir-Fry Recipe will keep beautifully in an airtight container in the fridge for up to 3 days. Over time, the broccoli may soften a bit, but the flavors actually deepen. I recommend reheating gently so the beef stays tender without drying out.
Freezer Friendly?
This recipe freezes okay but broccoli texture can become mushy after thawing. If freezing, pack the beef and sauce separately from broccoli. Thaw overnight in the fridge and reheat gently on the stovetop for best texture.
Reheat Like New
To reheat, I love using a skillet over medium-low heat with a splash of water or broth to keep everything moist. Microwave works fine too; just cover and heat in short bursts, stirring in between so the beef stays juicy and broccoli retains some snap.
Keto Beef and Broccoli Stir-Fry Recipe FAQs
Yes! While flank steak is ideal for its tenderness and flavor, you can substitute sirloin or skirt steak as long as you slice it thinly against the grain to avoid chewiness.
Absolutely. Use tamari instead of soy sauce to keep it gluten-free, and double-check that all sauces and sweeteners you use are certified gluten-free if sensitive.
You can prep your beef and chop the broccoli the day before to save time. Cook the stir-fry fresh for best texture, but leftovers store well and reheat nicely.
Erythritol is a great choice because it doesn't raise blood sugar and has minimal aftertaste. You can also try monk fruit sweetener or simply skip it if you prefer a truly savory sauce.
Final Flavor Thoughts
I hope this Keto Beef and Broccoli Stir-Fry Recipe becomes one of your go-to meals because it’s quick, tasty, and wonderfully satisfying. If you give it a try, let me know how it turned out — I’m always here for tips or tweaks! And if you’re feeling adventurous, try swapping in cauliflower florets or adding a splash of chili oil for a spicy kick next time. Your kitchen adventure awaits!
Print📖 Recipe
Keto Beef and Broccoli Stir-Fry Recipe
This Keto Beef and Broccoli Stir-Fry is a flavorful low-carb dish perfect for those following a ketogenic diet. Tender flank steak is stir-fried with crisp broccoli florets in a savory soy and sesame sauce, enhanced with garlic and ginger for a delicious Asian-inspired meal that comes together in under 30 minutes.
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 20 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: Asian
- Diet: Keto
Ingredients
Protein
- 1 lb (450g) flank steak, sliced thinly against the grain
Vegetables
- 2 cups broccoli florets
- 2 cloves garlic, minced
- 1 tablespoon ginger, minced
Oils and Sauces
- 2 tablespoons coconut oil (or olive oil)
- ¼ cup soy sauce (or tamari for gluten-free)
- 1 tablespoon sesame oil
Sweeteners and Garnishes
- 1 teaspoon erythritol or another keto-friendly sweetener (optional)
- Sesame seeds (for garnish)
- Green onions, sliced (for garnish)
Instructions
- Cook the Beef: In a large skillet or wok, heat the coconut oil over medium-high heat. Add the sliced flank steak and cook until browned, about 3-4 minutes. Remove the beef from the skillet and set it aside.
- Stir-Fry Vegetables: In the same skillet, add the broccoli florets, minced garlic, and minced ginger. Stir-fry for about 3-4 minutes until the broccoli becomes tender-crisp.
- Combine and Season: Return the cooked beef to the skillet and add the soy sauce, sesame oil, and erythritol if using. Stir everything well to combine and cook for an additional 2 minutes to blend the flavors and heat through.
- Garnish and Serve: Serve the stir-fry hot, garnished with sesame seeds and sliced green onions for added flavor and texture.
Notes
- For a gluten-free option, use tamari instead of soy sauce.
- If you prefer, substitute coconut oil with olive oil or avocado oil.
- The erythritol is optional and adds a slight sweetness to balance the soy sauce; omit if you want a more savory dish.
- Ensure to slice the flank steak thinly against the grain for tenderness.
- Broccoli can be substituted with other keto-friendly vegetables like cauliflower or bok choy.
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