1-First Step: Mise en place and rice prep Start cooking white rice according to package directions so its ready when the stir-fry finishes. Freeze the flank steak for 30 minutes to firm it up, making slicing easier. Slice very thinly against the grain into bite-sized strips, about 1/8 to 1/4 inch thick for tenderness. For plant-based, press and slice tofu similarly; gluten-free users stick with tamari later. This takes ~10 minutes active prep.

2-Second Step: Make the stir-fry sauce Whisk together 1 teaspoon fresh grated ginger, 2 teaspoons grated garlic, 1/2 cup hot water, 6 tablespoons soy sauce or gluten-free tamari, 3 tablespoons packed light brown sugar, 1.5 tablespoons cornstarch, and 1/4 teaspoon black pepper until smooth. Set aside (except optional 2 tablespoons water). For low-sodium, reduce soy by half; low-carb skip cornstarch and use xanthan gum. This builds the savory garlic sauce for beef and broccoli in under 2 minutes.

3-Third Step: Cook the broccoli Heat 1 tablespoon vegetable or canola oil in a large skillet over medium heat. Add 1 lb broccoli florets and sauté, partially covered, for 4 to 5 minutes, stirring occasionally, until bright green and crisp-tender. For softer broccoli or lighter technique, add 2 tablespoons water before covering. Remove broccoli to a plate. Vegan or veggie-focused cooks can extend this step. Use fresh broccoli to avoid mushiness; frozen needs thawing and drying first.

4-Fourth Step: Sear the beef Turn heat to high, add remaining 1 tablespoon oil. Add sliced beef in a single layer, searing about 2 minutes per side until just cooked through and browned. Work in batches to avoid overcrowding, which prevents steaming and ensures juicy results. For lower-calorie, trim visible fat; vegetarian swap sears mushrooms or tofu here at same high heat.

5-Fifth Step: Simmer the sauce Pour the prepared sauce into the pan with the beef. Reduce heat to medium-low and simmer 3 to 4 minutes, stirring, until sauce thickens to a glossy coating. This develops flavors; simmer at least 3 minutes as pro tip. Adjust with 1 to 2 tablespoons water for thinner beef and broccoli sauce if desired. Gluten-free version thickens identically.

6-Final Step: Combine and serve Return broccoli to the pan, toss everything to coat evenly in the sauce. Heat through for 1 minute. Serve immediately over cooked white rice, garnished with 2 teaspoons sesame seeds if desired. Total cook time ~13 minutes. For meal prep, cool before storing. This restaurant-style beef and broccoli at home is ready in 30 minutes active.