Description

When you need a dinner that feels comforting, bold, and filling—but don’t want to wait on delivery—this High-Protein Beef & Broccoli Stir-Fry is the answer. Tender, seared steak, crisp broccoli, and a glossy savory sauce come together in under 25 minutes. It’s quick, protein-packed, and completely customizable, making it perfect for busy weeknights or post-workout fuel.

Ingredients

1½ lb (680 g) flank steak or sirloin, thinly sliced against the grain
4 cups broccoli florets
2 tbsp avocado oil (or 1 tbsp avocado + 1 tbsp sesame oil)
3 garlic cloves, minced
1 tsp fresh ginger, grated
¼ cup low-sodium soy sauce (or tamari)
1 tbsp oyster sauce (optional but recommended)
1 tbsp rice vinegar
1 tbsp cornstarch + 2 tbsp water (slurry)

Optional Garnishes
Sesame seeds, sliced green onions, chili flakes

Instructions

Sear the Beef
Heat 1 tbsp oil in a large skillet or wok over high heat.
Add half the steak in a single layer. Sear 1–2 minutes per side until browned.
Remove to a plate and repeat with remaining steak.
Cook the Broccoli
Add remaining oil to the pan. Stir-fry broccoli for 3–4 minutes until bright green and tender-crisp.
Add Aromatics
Push broccoli aside. Add garlic and ginger to the center. Cook 30–60 seconds until fragrant, then stir together.
Combine
Return steak (and juices) to the pan.
Sauce & Thicken
Whisk soy sauce, oyster sauce, rice vinegar, and cornstarch slurry.
Pour into the pan and toss for 1–2 minutes until thick, glossy, and coated.
Serve Hot
Garnish as desired and serve immediately.

Notes

Slice against the grain: This is the #1 secret to tender beef.
Don’t crowd the pan: Cook steak in batches so it sears, not steams.
Hot pan = better flavor: High heat creates that restaurant-style char.
Too thin sauce? Let it boil briefly or add 1 tsp more cornstarch mixed with water.
Meal prep smart: Slice steak and mix sauce ahead of time for a 10-minute cook.