Meal Prep
Mongolian Beef
This Mongolian Beef is dangerously good- tender steak coated in a sticky, savory-sweet, garlicky sauce that tastes straight out of your favorite takeout spot. Packed with 47.1g of protein and perfectly balanced with rice and veggies, it’s fast, meal prep-friendly, and somehow even better the next day. This is how you make your macros hit and your lunch go crazy.
- Prep
- 30 min
- Cook
- 25 min
- Makes
- 4 servings
- Prep Time
- 30 mins
- Cook Time
- 25 mins
- Total Time
- 55 mins
Equipment
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Ingredients
Ingredient links open Walmart products from our grocery planner. Links marked “Walmart search” need your product choice. Confirm package details and local availability at Walmart.
For the Beef:
For the Mongolian Sauce:
For the Vegetables:
For the Rice:
Instructions
Prep the Beef:
1 ½ lb lean steak
2 tbsp cornstarch
Make the Sauce:
½ cup low-sodium soy sauce, ¼ cup sriracha sauce, 1 tbsp water, ¼ cup brown sugar, 4 cloves garlic, 2 tbsp fresh ginger
Cook the Rice:
1 cup dry jasmine rice
Add the listed rice vinegar for flavor.
1 tbsp rice vinegar
Stir-Fry the Vegetables:
Heat olive oil spray in a large skillet or wok over medium-high heat.
½ tsp olive oil spray
2 large bell peppers, ½ cup serrano peppers
Cook the Beef:
Increase heat to high and add olive oil spray.
½ tsp olive oil spray
Combine & Simmer:
Assemble & Serve:
½ cup green onions
See it come together
Watch: Mongolian Beef
Nutrition
Per servingEstimates for one serving.
- Calories
- 516 kcal
- Protein
- 47.1 g
- Fat
- 6.5 g
- Carbs
- 66.7 g
Full nutrition and how it’s calculated
All values are per serving. Changing the recipe yield scales the ingredients and keeps these per-serving amounts the same.
- Saturated Fat
- 2.09 g
- Polyunsaturated Fat
- 0.61 g
- Monounsaturated Fat
- 2.65 g
- Trans Fat
- 0.19 g
- Cholesterol
- 94 mg
- Sodium
- 1,666 mg
- Potassium
- 1,061 mg
- Fiber
- 3 g
- Sugar
- 19.3 g
- Added Sugar
- 16.3 g
- Vitamin A
- 52 mcg RAE
- Vitamin C
- 95.53 mg
- Vitamin D
- 0.17 mcg
- Calcium
- 76 mg
- Iron
- 6.53 mg
Estimated ingredient cost
$6.76 per serving · $27.04 for this batch
Ingredient costs and assumptions
Estimated US grocery prices for the amounts used, including purchase waste and discarded marinade. Your store, brands, and package sizes may cost differently. Buying full packages can cost more. Price sources and methodology.
Quantities without exact weights use the nutrition library’s portion estimates. Purchase yields are estimates. Separate citrus ingredients are costed independently; reusing the same fruit for juice and zest can lower your cost. Labor, utilities, and delivery are excluded.
- lean steak: $21.54
680.4 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
Authored ingredient weight. BLS Choice boneless sirloin category average; generic lean steak uses this cut as a proxy.
BLS: Sirloin steak, boneless, USDA Choice · Price checked 2026-09-21
- cornstarch: $0.07
16 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup = 128 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Great Value Corn Starch, 16 oz · Price checked 2026-09-21
- olive oil spray: $0.05
2.3 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 tsp = 4.5 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Great Value Extra Virgin Olive Oil Cooking Spray, 7 oz Can · Price checked 2026-09-21
- low-sodium soy sauce: $0.43
127.5 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup = 255 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Great Value Less Sodium Soy Sauce, 15 fl oz · Price checked 2026-09-21
- sriracha sauce: $0.73
78 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 tsp = 6.5 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Huy Fong Foods Sriracha Hot Chili Sauce, Medium, 17 Oz - Low Sodium, No Artificial Preservatives · Price checked 2026-09-21
- brown sugar: $0.12
55 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup (packed) = 220 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Great Value Light Brown Sugar, 32 oz · Price checked 2026-09-21
- garlic: $0.22
12 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
3 clove = 9 g; USDA SR Legacy household weights used as an approximate physical conversion for the current ingredient profile; nutrition remains from its own mapped record. Representative product for this ingredient; your brand and package size may differ.
Walmart: Spice World Fresh Peeled Garlic, 6 oz, Pouch · Price checked 2026-09-21
- fresh ginger: $0.11
12 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 tsp = 2 g Variable-weight produce: uses the listed price per pound, not the estimated price per piece.
Walmart: Fresh Ginger Root, Each · Price checked 2026-09-21
- large bell peppers: $1.72
360 g purchased · Whole purchased item: 180 g each (estimated); includes shell, peel, or seeds.
1 pepper = 164 g; USDA SR Legacy household weights used as an approximate physical conversion for the current ingredient profile; nutrition remains from its own mapped record. Representative product for this ingredient; your brand and package size may differ.
Walmart: Fresh Green Bell Pepper, Each · Price checked 2026-09-21
- serrano peppers: $0.74
52.5 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup (chopped) = 105 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Fresh Serrano Pepper, 4 oz Bag · Price checked 2026-09-21
- green onions: $0.55
50 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup (chopped) = 100 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Fresh Whole Green Onion 1 Bunch, Fresh Produce · Price checked 2026-09-21
- olive oil spray: $0.05
2.3 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 tsp = 4.5 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Great Value Extra Virgin Olive Oil Cooking Spray, 7 oz Can · Price checked 2026-09-21
- dry jasmine rice: $0.59
185 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 cup = 185 g Representative product; brand and package size may differ.
Walmart: Great Value Jasmine Rice · Price checked 2026-09-21
- rice vinegar: $0.12
14.9 g purchased · Uses the reviewed ingredient quantity before cooking or marinade losses.
1 tbsp = 14.9 g Representative product for this ingredient; your brand and package size may differ.
Walmart: Mizkan Rice Vinegar, Mild Japanese Cooking Vinegar, 12 fl oz · Price checked 2026-09-21
Not included in this estimate:
- water: Kitchen tap water is excluded from grocery ingredient pricing; this is not a sourced zero price.
Make it yoursRecipe notes & meal-prep tips
Macro breakdown
- Protein47.1g37%
- Carbs66.7g52%
- Fat6.5g11%
Per serving · Share of calories from macros
Calculated using 4 calories per gram of protein and carbs, and 9 for fat. Rounding and fiber can affect the listed calorie total.Triple B's Meal Prep Notes
This Mongolian beef has two separate sources of heat: sriracha in the sauce and serrano peppers with the vegetables. Adjust both if you want a milder batch. Replacing some or all of the serranos with more bell pepper is an option to try while keeping the ginger-garlic sauce as the main flavor. It is easier to make that decision before cooking than to rescue a whole spicy pan afterward.
Slice the beef thinly across the grain, then coat it with cornstarch while you prepare the sauce and start the rice. Cook the peppers briefly, leaving some bite, and take them out before searing the beef in batches. They soften quickly in this sauce, so I would pack them on top of the glazed beef instead of stirring them into it. That keeps them out of the wettest part of the bowl until you eat. This is the kind of organization that makes stir-fry meal prep manageable.
For a refrigerated serving, microwave on high for 90 seconds, stir, then heat for another 45 seconds. Use that as a starting point and continue in short intervals as needed until the food reaches 165°F throughout. Stir the rice through the sauce and separate the beef strips during the pause. Keep green onions for after heating if you want a fresher finish. The cornstarch coating will soften in the stored saucy meal, so expect glazed beef rather than a crisp crust. Browse the beef recipes or other Asian-inspired meals for different ways to use the same style of sliced steak.
Notes from your kitchen
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From the community
I built this recipe because I wanted classic takeout vibes that still fit into a structured meal prep week. I’ve cooked it, eaten it, and would absolutely keep it in rotation. If you make this one, I’d love to hear how it turns out for you.