If you’re on the lookout for a delightful, healthy, and satisfying dinner that keeps carbs low but flavor sky-high, this Keto Beef and Broccoli Recipe is your new best friend. It marries tender strips of juicy flank steak with vibrant, crisp broccoli all tossed in a luscious, garlicky soy-based marinade that will leave your taste buds cheering. Whether you’re sticking to a keto lifestyle or just craving a wholesome, quick meal, this dish delivers a perfect balance of protein, veggies, and bold tastes that come together effortlessly.

Ingredients You’ll Need
Each ingredient in this Keto Beef and Broccoli Recipe plays a crucial role in building layers of flavor, texture, and color. The simplicity of the ingredients makes it easy to prepare, yet every single one adds its magic to the dish.
- 2 pounds flank steak: Thinly sliced against the grain, it ensures tender, juicy bites.
- 2 tablespoons coconut oil: Adds a subtle sweetness and great for marinating and cooking.
- 1/2 cup soy sauce (or liquid aminos): Provides that classic umami depth essential for the dish’s savory punch.
- 2 tablespoons minced garlic: Infuses a rich, aromatic warmth that wakes up the entire dish.
- 1 teaspoon lemon juice: Offers a bright, tangy note balancing the savory richness perfectly.
- 1 tablespoon apple cider vinegar: Adds a gentle acidity to cut through the meat’s heartiness.
- 4 cups broccoli (chopped): Brings crunch, a pop of green color, and a healthy serving of fiber.
- 2 tablespoons sesame oil: Each splash adds a fragrant, nutty aroma that ties the dish together beautifully.
- 2 tablespoons fresh parsley, finely chopped: A fresh finishing touch that lifts the presentation and flavor.
How to Make Keto Beef and Broccoli Recipe
Step 1: Prepare the Steak
Start by slicing the flank steak against the grain into bite-sized strips. This technique is essential for ensuring every piece is tender and easy to chew. Place the sliced steak in a mixing bowl, ready for that flavor-packed marinade.
Step 2: Whip Up the Marinade
In a separate bowl, combine coconut oil, soy sauce, minced garlic, lemon juice, and apple cider vinegar. This marinade is where the magic begins. Pour it over your steak, making sure every strip is generously coated. Let it soak up those bold flavors while you prep your pan.
Step 3: Cook the Beef
Heat one tablespoon of sesame oil in a non-stick pan over medium-high heat. Add the marinated steak along with half of the marinade to the pan. Sear the meat for about 5 minutes, stirring occasionally to get that gorgeous caramelization that locks in juiciness and flavor.
Step 4: Add the Broccoli and Finish Cooking
Introduce the remaining sesame oil and chopped broccoli to the pan along with the rest of the marinade. Cook everything together for an additional 5 minutes. The goal is for the broccoli to become tender yet maintain a vibrant green color and a satisfying crunch, perfectly complementing the succulent beef.
How to Serve Keto Beef and Broccoli Recipe

Garnishes
Fresh parsley sprinkled generously over the finished dish adds a burst of color and a subtle herbaceous note that elevates the whole experience. If you want an extra layer of texture, consider toasted sesame seeds for a delicate crunch and more nutty flavor.
Side Dishes
This Keto Beef and Broccoli Recipe stands confidently on its own as a fulfilling entree, but you can pair it with cauliflower rice or a simple garlic butter sautéed spinach to round out your meal with more low-carb veggies, making your plate both colorful and keto-friendly.
Creative Ways to Present
Try serving the beef and broccoli atop a bed of spiralized zucchini noodles for a playful twist or pack it into lettuce wraps for a handheld meal option that’s both fun and fresh. These presentations keep your meal exciting while staying true to keto-friendly principles.
Make Ahead and Storage
Storing Leftovers
Store any leftover Keto Beef and Broccoli in an airtight container in the refrigerator for up to 3 days. This helps the flavors settle beautifully, and the dish re-heats nicely without losing its texture or punch.
Freezing
If you want to batch-cook this recipe, you can freeze portions in a sealed freezer-safe container for up to 2 months. Defrost in the fridge overnight before reheating to maintain the best taste and texture.
Reheating
Reheat leftovers gently in a skillet over medium heat, adding a splash of water or broth if needed to keep everything moist. Avoid microwaving if possible, as searing the beef again briefly brings back the lovely caramelized edges and freshens the broccoli.
FAQs
Can I use a different cut of beef for this recipe?
Absolutely! While flank steak is ideal for its texture and flavor, you can substitute with sirloin, skirt steak, or even rib-eye strips. Just make sure to slice thinly against the grain for tenderness.
Is soy sauce keto-friendly?
Yes, traditional soy sauce is low in carbs and works well for keto diets. If you need a gluten-free option, liquid aminos are a great alternative and equally keto-friendly.
Can I make this recipe vegetarian or vegan?
You can swap the beef for tofu or tempeh and keep the same marinade for a vegetarian or vegan version. Just adjust cooking times to ensure the plant-based protein is heated through and nicely seared.
What if I don’t have sesame oil?
If you don’t have sesame oil, you can substitute with toasted olive oil or avocado oil for cooking, but keep in mind that sesame oil brings a unique nutty aroma that is key to the traditional flavor profile.
How spicy is this dish? Can I add heat?
This Keto Beef and Broccoli Recipe is mild by default, but if you love a kick, add a pinch of red pepper flakes or a dash of chili garlic sauce during cooking to ramp up the heat safely without adding carbs.
Final Thoughts
Trust me, once you try this Keto Beef and Broccoli Recipe, it will quickly become a go-to in your meal rotation. It’s fast, flavorful, and perfectly tailored to those embracing a low-carb lifestyle without sacrificing taste. So grab your skillet, gather those simple ingredients, and enjoy a comforting dish that feels like a big warm hug on a plate.
Print
Keto Beef and Broccoli Recipe
- Prep Time: 10 minutes
- Cook Time: 10 minutes
- Total Time: 20 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Stovetop
- Cuisine: Asian-Inspired
- Diet: Low Carb
Description
This Keto Beef and Broccoli recipe offers a quick and delicious low-carb meal featuring tender flank steak marinated in a savory sauce and stir-fried with fresh broccoli. Packed with bold flavors from garlic, soy sauce, and sesame oil, it’s perfect for a healthy weeknight dinner that satisfies without compromising your keto lifestyle.
Ingredients
Beef and Marinade
- 2 pounds flank steak
- 2 tablespoons coconut oil
- 1/2 cup soy sauce (can use liquid aminos)
- 2 tablespoons minced garlic
- 1 teaspoon lemon juice
- 1 tablespoon apple cider vinegar
Vegetables and Finishing
- 4 cups broccoli, chopped
- 2 tablespoons sesame oil
- 2 tablespoons fresh parsley, finely chopped
Instructions
- Slice the steak: Slice flank steak against the grain into bite-sized strips and place in a mixing bowl to prepare for marinating.
- Prepare marinade: In a separate bowl, mix together coconut oil, soy sauce, minced garlic, lemon juice, and apple cider vinegar. Pour this marinade over the sliced steak, ensuring thorough coating.
- Sear the steak: Heat 1 tablespoon of sesame oil in a non-stick pan over medium-high heat. Add the marinated steak along with half of the marinade and sear for about 5 minutes until the beef is browned and cooked through.
- Cook broccoli: Add the remaining sesame oil and chopped broccoli to the pan with the rest of the marinade. Cook for an additional 5 minutes, stirring frequently, until the broccoli is tender but still retains a bright green color.
- Finish and serve: Stir in the finely chopped parsley for freshness. Serve hot for a satisfying keto-friendly meal.
Notes
- For a gluten-free option, use tamari or coconut aminos instead of soy sauce.
- Make sure to slice the steak against the grain to ensure tenderness.
- Adjust the amount of garlic depending on preference.
- This dish pairs well with cauliflower rice for a complete keto meal.
- Use fresh broccoli for best texture and flavor; frozen broccoli can be used but may alter cooking time slightly.

