Keto flank steak broccoli sears thin slices of marinated flank steak with bright green broccoli florets in a savory garlic and soy marinade. It has only a few net carbs per serving and cooks in about twenty minutes after a short marinade.
The beef is sliced against the grain so every bite is tender, and the broccoli stays crisp in a hot skillet. Serve it over cauliflower rice for a low carb dinner that tastes like a takeout favorite.
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Why This Keto Flank Steak Broccoli Recipe Works
Thin slices of flank steak soak up the marinade quickly and cook in minutes, so the meat stays tender and juicy.
A simple mix of soy sauce, sesame oil, and garlic gives the beef a deep, savory flavor without any sugar or cornstarch.
Broccoli adds color, crunch, and fiber while keeping carbs low, which suits a keto eating plan.
Ingredients for Keto Flank Steak Broccoli
- The dish uses one pound of flank steak sliced thin, two cups of broccoli florets, and one tablespoon of olive oil for cooking.
- The marinade uses a quarter cup of soy sauce, two tablespoons of sesame oil, and three minced garlic cloves, with sesame seeds as an optional garnish.
Flank steak. It is lean, beefy, and tender when sliced thin.
Broccoli. It adds crunch and keeps carbs low.
Soy sauce. It adds salt and savory depth.
Sesame oil. It adds a toasty, nutty flavor.
Garlic. It adds a sharp, aromatic bite.
How to Make Keto Flank Steak Broccoli
1. Slice the steak. Slice the flank steak thinly against the grain.
2. Marinate. Mix the soy sauce, sesame oil, and garlic, add the beef, and let it sit for at least thirty minutes.
3. Prep the broccoli. Rinse the broccoli florets and cut them into bite sized pieces.
4. Sear the beef. Heat the olive oil in a large skillet over medium high heat and sear the beef in a single layer for three to four minutes.
5. Cook the broccoli. Remove the beef, add the broccoli to the same skillet, and stir fry for two to three minutes until tender but crunchy.
6. Combine. Return the beef to the skillet, toss everything together, and serve hot with sesame seeds.
Freeze the steak for twenty minutes before slicing. A firm steak slices into thin, even strips much more easily than one at room temperature. Cut across the grain, which shortens the muscle fibers and makes each bite tender instead of chewy.
Pat the beef dry before it goes into the pan. Wet meat steams instead of searing, so you lose the brown crust that carries so much flavor. Lift the slices out of the marinade, let the excess drip off, and blot them lightly with a paper towel.
How to Serve Keto Flank Steak Broccoli
Serve the beef and broccoli over cauliflower rice, zucchini noodles, or plain steamed rice. For more keto and stir fry dinners, try keto hamburger and broccoli skillet, sliced flank steak broccoli skillet, keto chicken broccoli casserole, or flank steak beef stir fry.
How to Store and Reheat Keto Flank Steak Broccoli
Cool the beef and broccoli and refrigerate them in an airtight container for up to four days. Reheat in a hot skillet for a minute or two to avoid overcooking the beef. The broccoli softens as it sits, so avoid freezing this dish.
Tips and Variations for Keto Flank Steak Broccoli
Flag the allergens. This dish contains soy and sesame, and some soy sauce contains wheat, so check the labels.
Do not taste the used marinade. Raw beef sat in it, so discard it or boil it for several minutes before using it as a sauce.
Cook in batches. Crowding the pan steams the beef.
Use a hot pan. Searing locks in flavor.
Do not overcook. Flank steak turns tough when well done.
Check the temperature. Beef steaks are safe at 145 F.
Add heat. Red pepper flakes give a kick.
Check trusted guidance. Read the FDA safe food handling guidance for marinating and cooking beef.
Use coconut aminos in place of soy sauce for a gluten free and lower sodium version. The flavor is slightly sweeter, so add a small splash of rice vinegar to balance it. Tamari also works for gluten free eaters and tastes closer to regular soy sauce.
Add sliced mushrooms, green onions, or red bell pepper for extra variety. Keep the pieces about the same size as the broccoli so they cook in the same time. A spoonful of grated ginger in the marinade also adds a fresh, spicy note that goes well with the garlic.
Frequently Asked Questions About Keto Flank Steak Broccoli
How do you slice flank steak for keto flank steak broccoli?
Slice it thinly against the grain after freezing it for twenty minutes.
Can you make keto flank steak broccoli ahead of time?
Yes. Marinate the beef a few hours early and cook it when ready to eat.
How many carbs are in keto flank steak broccoli?
The dish has only a few net carbs per serving, mostly from the broccoli and soy sauce.
Can I use sirloin?
Yes. Sirloin works in the same amount if sliced thin.
Can I freeze the cooked dish?
Freezing is not recommended because the broccoli turns soft.
Keto Flank Steak Broccoli
Equipment
- Large skillet
- Mixing bowl
- Sharp knife
Ingredients
Main Ingredients
- 1 lb flank steak sliced thin
- 2 cup broccoli florets
- ¼ cup soy sauce
- 2 tbsp sesame oil
- 3 garlic cloves minced
- 1 tbsp olive oil
- 1 tbsp sesame seeds optional
Instructions
Cooking
- Slice. Slice the flank steak thinly against the grain.
- Marinate. Mix the soy sauce, sesame oil, and garlic, add the beef, and rest 30 minutes.
- Sear. Sear the beef in hot olive oil for 3 to 4 minutes and remove it.
- Broccoli. Stir fry the broccoli in the same skillet for 2 to 3 minutes.
- Combine. Return the beef, toss, and serve with sesame seeds.
