Protein Rich Mongolian Beef Stir Fry Meal Prep
This Mongolian beef meal prep comes together in about 25–30 minutes and keeps well for the week. It stores easily in the fridge or freezer and tastes great hot or cold — an ideal high‑protein, flavor-packed option for meal prep.

Mongolian Beef Stir Fry
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Ingredients
Beef and Marinade
- 600g (1.3lb) – Thinly sliced steak (scotch, eye fillet, rump, skirt)
- 1 ½ Tbsp (30ml) – Low sodium soy sauce
- 1 ½ Tbsp (30ml) – Shaoxing wine
- 1 tsp (5g) – Baking soda
- 4 tsp (10g) – Corn flour or starch
Stir Fry
- 2 ½ Tbsp (50ml) – Peanut oil
- 1 – Large onion, diced
- 4 – Garlic cloves, chopped
- 20g (0.7oz) – Ginger, thinly sliced
- 600g (1.3lb) – Precooked Hokkien noodles
- 4 – Spring onions (scallions), thinly sliced
Mongolian Sauce
- ½ Cup (125ml) – Low sodium soy sauce
- ½ Cup (125ml) – Chicken stock
- 3 Tbsp (60g) – Oyster sauce
- 2 Tbsp (20g) – Brown sugar (optional)
- 2 Tbsp (40ml) – Shaoxing wine
Instructions
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Combine the beef with the marinade ingredients and mix thoroughly. Let rest for 5 minutes to allow flavors to penetrate.
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In a separate bowl, whisk together the Mongolian sauce ingredients until smooth. Set aside.
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Heat oil in a large wok or frying pan over high heat. Add the onion and stir‑fry about 2 minutes. Add the beef, spreading the strips so they contact the pan; let them sear for about a minute, then flip and stir‑fry another minute until nicely colored. Add ginger and garlic and stir for 1–2 minutes until fragrant.
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Add the precooked noodles and pour in the Mongolian sauce. Stir‑fry until everything is well combined and the sauce becomes thick and glossy. Fold through the spring onions, then remove from heat.
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Divide into five 750ml meal‑prep containers, garnish with extra spring onion if desired, and enjoy.
Nutrition Guide
The nutrition guide above is an estimate per serving based on average daily values.
Recipe Notes
Mongolian Beef Stir Fry Meal Prep Storage Instructions
Store prepared portions in airtight containers in the fridge for up to 4 days. For longer storage, freeze in sealed containers for up to 3 months. If frozen, thaw overnight in the refrigerator before reheating.
Mongolian Beef Stir Fry Meal Prep Reheating Instructions
To reheat on the stove, warm a pan over medium heat with a splash of vegetable stock or chicken stock and a dash of soy sauce, then toss the meal prep until heated through. Alternatively, microwave in short bursts, stirring between intervals to heat evenly.
Watch How To Make The Recipe
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