Lean Beef Stir-Fry with Brown Rice
This lean beef stir-fry with brown rice delivers a balanced, protein-packed meal ideal for busy weeknights or post-workout recovery. Featuring tender sliced sirloin and crisp bell peppers tossed in a savory low-sodium soy sauce and toasted sesame oil glaze, it hits all the right notes of savory satisfaction without excess calories or saturated fat. Each serving provides 480 calories and 41 grams of high-quality protein to support muscle repair, paired with complex carbohydrates from nutty brown rice for sustained energy. The preparation is straightforward, relying on high-heat cooking to lock in the juices of the beef while keeping the peppers vibrant and crisp-tender. Whether you are cooking a fresh dinner or prepping lunches ahead of time, this reliable recipe offers consistent results and dependable macros.
Nutrition (per serving)
Calories
480
Protein
41 g
Carbs
44 g
Fat
16 g
Ingredients
- 300 g (about 10.5 oz) beef sirloin, visible fat trimmed and sliced into thin strips
- 100 g (about 1/2 cup) uncooked brown rice
- 200 g (about 2 medium peppers) bell peppers, sliced into thin strips
- 15 ml (1 tablespoon) sesame oil
- 30 ml (2 tablespoons) low sodium soy sauce
- 250 ml (1 cup) water
- 2 g (1/4 teaspoon) black pepper
- 2 g (1/4 teaspoon) salt
Instructions
- Rinse the brown rice thoroughly under cold water. Combine the rice with the water and a pinch of salt in a small saucepan. Bring to a boil over medium-high heat, then cover with a tight-fitting lid, reduce the heat to low, and simmer for 40 minutes or until the water is fully absorbed and the rice is tender.
- While the rice cooks, pat the sliced beef sirloin dry with paper towels to ensure a good sear. Season the beef evenly with salt and black pepper.
- Place a large skillet or wok over high heat and add half of the sesame oil (7.5 ml) until shimmering and hot.
- Add the sliced beef to the hot skillet in a single layer without overcrowding. Sear undisturbed for 2 minutes to develop color, then stir-fry for an additional 2 to 3 minutes until browned and the internal temperature reaches at least 63°C for medium-rare or 71°C for medium. Remove the beef from the pan and set it aside on a clean plate.
- Return the skillet to medium-high heat and add the remaining sesame oil (7.5 ml).
- Add the sliced bell peppers to the hot skillet. Stir-fry for 4 to 5 minutes until they are slightly softened and blistered at the edges but retain a crisp texture.
- Return the cooked beef and any accumulated juices back into the skillet with the bell peppers.
- Pour the low-sodium soy sauce directly over the beef and peppers. Toss everything continuously for 1 to 2 minutes over medium-high heat until the sauce is reduced slightly and evenly coats the ingredients.
- Divide the cooked brown rice evenly between two serving bowls and top each with the hot beef and bell pepper stir-fry.
Pro tips
- Budget swap: If sirloin is outside your budget, substitute it with flank steak or lean top round roast sliced very thin.
- Higher-protein swap: Increase the beef portion slightly or add 50g of edamame to the vegetable mix if you need an even higher protein target.
- Meal-prep advice: This dish stores exceptionally well for meal prep; divide the rice and stir-fry into airtight containers immediately after cooling.
- How to avoid ruining the dish: Do not overcrowd the pan when cooking the beef, or the meat will steam instead of searing, resulting in a tough and grey texture.
- Cutting tip: Slice the beef against the grain for the most tender bite.
Storage & reheating
Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat in a microwave-safe dish for 2 minutes on high, or in a skillet over medium heat with a splash of water until steaming hot.
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Frequently asked questions
Can I use white rice instead of brown rice?
Yes, you can substitute white rice for brown rice. Keep in mind that white rice cooks much faster (about 15 to 20 minutes) and has a slightly different carbohydrate and fiber profile, which will subtly alter the total macros.
How do I keep the beef from getting tough?
Always slice the beef thinly against the grain, ensure your pan is very hot before adding the meat, and do not overcook it. Cooking the sirloin just until it reaches a safe internal temperature keeps it tender and juicy.
Can I freeze this stir-fry?
Yes, you can freeze this meal in airtight containers for up to 2 months. Note that bell peppers will lose some of their crispness and become softer after thawing and reheating.
Is this recipe gluten-free?
Standard soy sauce contains wheat. To make this recipe strictly gluten-free, substitute the low-sodium soy sauce with an equal amount of certified gluten-free tamari.
