Better than takeout and ready in 20 minutes, Teriyaki Beef and Broccoli Skillet combines thinly sliced flank steak with crisp-tender broccoli florets coated in a glossy, sweet-and-savory teriyaki glaze.
The secret to melt-in-your-mouth beef is Slicing Against the Grain and Flash-Searing over High Heat in Small Batches. Slicing across the muscle fibers breaks down toughness, while high-heat searing caramelizes the edges quickly without overcooking or steaming the meat.
Why You’ll Love This Skillet Meal
- Faster Than Delivery: Comes together in 20 minutes with zero waiting on takeout.
- Tender, Juicy Beef: High-heat searing locks in rich beefy flavor without drying it out.
- Glossy Homemade Glaze: Made with real soy sauce, brown sugar, garlic, and ginger—no artificial preservatives.
- High-Protein & Great for Meal Prep: Packs wonderfully over steamed jasmine or brown rice for weekday lunches.
Key Ingredients Overview
- Beef: 1½ lbs flank steak or skirt steak (thinly sliced against the grain into bite-sized strips).
- Vegetables: 4 cups broccoli florets (cut into bite-sized pieces) and 2 tbsp water (for steaming).
- Beef Marinade: 1 tbsp soy sauce, 1 tbsp cornstarch, and 1 tsp toasted sesame oil.
- Teriyaki Sauce: ⅓ cup low-sodium soy sauce, ¼ cup water, 3 tbsp brown sugar (or honey), 1 tbsp mirin (optional), 3 garlic cloves (minced), 1 tsp fresh ginger (grated), and 1 tbsp cornstarch.
- Cooking Oil: 2 tbsp neutral oil (like canola or vegetable oil).
- Finishers: 1 tbsp toasted sesame seeds and 2 sliced green onions.
Step-by-Step Instructions
1.Marinate Beef & Mix Sauce:4 min.
In a bowl, toss thinly sliced beef with 1 tbsp soy sauce, 1 tbsp cornstarch, and sesame oil. In a separate cup, whisk low-sodium soy sauce, ¼ cup water, brown sugar, mirin, minced garlic, grated ginger, and 1 tbsp cornstarch until smooth.
2.Steam Broccoli Florets:3 min.
Heat 1 tsp oil in a large skillet or wok over medium-high heat. Add broccoli florets and 2 tbsp water. Cover with a lid and steam for 2 to 3 minutes until bright green and crisp-tender. Transfer broccoli to a plate.
3.Flash-Sear Beef:4 min.
Wipe the skillet dry and heat 1½ tbsp oil over high heat until shimmering. Add beef strips in a single layer (cook in two batches if necessary). Sear undisturbed for 1 to 2 minutes per side until browned.
4.Simmer Teriyaki Sauce:2 min.
Pour the whisked teriyaki sauce into the skillet with the beef. Bring to a simmer over medium heat for 1 minute, stirring continuously as the sauce thickens into a glossy glaze.
5.Toss, Garnish & Serve Warm:1 min.
Return cooked broccoli to the skillet and toss gently to coat everything in sauce. Garnish with toasted sesame seeds and sliced green onions. Serve hot over warm white rice!

Expert Tips for Success
- Slice Against the Grain: Look for the direction the muscle fibers run in the steak and cut perpendicular across them. This shortens the fibers, ensuring tender slices.
- Partial Freeze for Easy Slicing: Pop your steak into the freezer for 15–20 minutes before cutting; firming up the meat makes razor-thin slicing effortless.
- Don’t Overcook the Broccoli: Steaming for just 2–3 minutes keeps the broccoli vibrant green and pleasantly crunchy rather than mushy.
The Recipe Card
- Prep Time: 10 mins
- Cook Time: 10 mins
- Total Time: 20 mins
- Yield: 4 Servings
Ingredients:
- 1½ lbs Flank Steak (sliced thin against the grain)
- 4 cups Broccoli Florets
- ⅓ cup Low-Sodium Soy Sauce & ¼ cup Water
- 3 tbsp Brown Sugar & 1 tbsp Mirin
- 3 Garlic Cloves & 1 tsp Fresh Ginger
- 2 tbsp Cornstarch (divided) & 1 tsp Sesame Oil
- 2 tbsp Neutral Cooking Oil
- Toppings: Sesame Seeds & Green Onions
Instructions:
Toss sliced beef with 1 tbsp soy sauce, 1 tbsp cornstarch, and sesame oil. Whisk remaining soy sauce, water, brown sugar, mirin, garlic, ginger, and 1 tbsp cornstarch. Steam broccoli in skillet with 2 tbsp water for 3 minutes; set aside. Sear beef in hot oil over high heat for 2 minutes per side. Pour in sauce and simmer 1 minute until thick. Toss in broccoli, garnish with sesame seeds and green onions, and serve!