Lomo Saltado Calories and a Classic Peruvian Recipe

Lomo saltado is a Peruvian stir-fry of beef, red onion, tomato, and fries, usually served with rice. Its hot pan, tangy soy-vinegar sauce, and crisp potatoes make a hearty, savory meal; regional and family versions vary. Calories depend mostly on the portions of beef, oil, fries, and rice, so this recipe includes an estimate and practical ways to adjust serving sizes.

Ingredients

1 lb (450 g) sirloin steak, trimmed and cut across the grain into strips about ¼ inch (6 mm) thick
1 lb (450 g) russet potatoes, scrubbed and cut into ½-inch (1.3 cm) fries
2 tbsp (30 ml) neutral high-heat oil, divided
1 medium red onion (about 8 oz/225 g), cut into thick wedges
2 medium Roma tomatoes (about 8 oz/225 g), cut into wedges
2 garlic cloves (about 6 g), finely chopped
3 tbsp (45 ml) regular soy sauce
2 tbsp (30 ml) red wine vinegar
1 tbsp (15 ml) aji amarillo paste
¼ tsp ground cumin
¼ tsp freshly ground black pepper
2 tbsp (30 ml) water
2 tbsp chopped fresh cilantro (about 8 g)
3 cups cooked white rice (about 450 g), for serving
Fine salt, as needed

Instructions

Heat the oven to 425°F (220°C). Pat the potatoes dry and toss them with 1 tablespoon (15 ml) of the oil and a light sprinkle of salt. Arrange in one layer on a baking sheet, leaving space between the fries. Roast for 25–30 minutes, turning once, until golden and tender. The fries can cook while you prepare the beef; the total time allows for this overlap.
While the fries roast, stir together the soy sauce, red wine vinegar, aji amarillo paste, cumin, pepper, and water in a small bowl. Pat the beef dry and season lightly with salt. Cut the onion and tomatoes, and chop the garlic. Keep the tomato pieces fairly large so they soften without turning to pulp.
Heat a large wok or heavy skillet over high heat until very hot. Add the remaining 1 tablespoon (15 ml) oil. Cook the beef in two batches, spreading each batch out so it sears rather than steams. Stir-fry each batch for about 1–2 minutes, just until browned outside, then transfer it to a clean plate. Check the thickest pieces with a food thermometer: USDA FSIS specifies 145°F (63°C) with a 3-minute rest as the safe minimum for whole cuts of beef. If needed, cook the pieces to temperature before resting.
Add the onion to the hot pan and stir-fry for about 1 minute. Add the garlic and cook for 20 seconds, then add the tomatoes and sauce mixture. Toss for 1–2 minutes, scraping up browned bits; the onion should retain some bite and the tomato should soften but hold its shape.
Return the rested beef and any juices to the pan. Toss briefly until hot and coated in sauce, then fold in the fries gently so they pick up flavor while staying as crisp as possible. Taste and adjust salt or vinegar. Scatter cilantro over the top.
Spoon the rice into four bowls or plates and serve the beef, vegetables, and fries alongside or over it. For the crispest fries, keep them on the side rather than soaking them in the sauce.

Tips

Get the pan hot: A crowded or cool pan releases moisture and steams the steak. Cook in batches, and let the pan regain heat before adding the next one.
Slice across the grain: Look for the direction of the muscle fibers and cut across them. This shortens the fibers and makes the strips easier to chew.
Choose an aji amarillo substitute thoughtfully: Aji amarillo paste gives the dish a fruity, moderately spicy flavor. If you cannot find it, use 1 tablespoon (15 ml) yellow chile paste or a mix of mild yellow pepper and a pinch of cayenne; the flavor will be less distinctly Peruvian.
Keep components separate until serving: Tossing fries into the sauce is traditional in many versions, but it softens them. Combine only the amount you plan to eat right away.

Serving Suggestions

Serve with plain steamed white rice, which balances the sharp, savory pan sauce. A simple green salad or sliced avocado adds freshness without competing with the stir-fry. If serving family-style, put the fries on a platter beside the beef mixture so everyone can choose how crisp or saucy to make their portion. A squeeze of lime is optional; use it sparingly because the vinegar already brings acidity.

Variations

For a lighter portion, serve ½ cup (75 g) cooked rice per person and use fewer fries, adding extra tomato or onion. This changes the calories mainly by reducing the starch serving; it does not make the dish calorie-free. For more heat, add sliced fresh chile or a little extra aji amarillo paste. Chicken can replace beef, but cook it to 165°F (74°C), checked with a food thermometer. For a vegetarian version, sear thick strips of portobello mushroom or firm tofu in batches; the texture and flavor will differ from the beef original.

Estimated calories: This recipe makes four servings, each with about ¾ cup (110–115 g) cooked rice and one-quarter of the beef, vegetables, and fries. A serving is approximately 650–750 calories, depending on the cut of beef, the amount of oil absorbed by the fries, and exact serving sizes. This is an estimate, not a lab measurement; ingredient labels and cooking methods affect the result. For a more tailored estimate, calculate from the products and portions actually used.

Storage and Reheating

For food safety, refrigerate leftovers within 2 hours of cooking in shallow, airtight containers. Store the beef and vegetables separately from the fries and rice when possible. Refrigerated leftovers keep for 3–4 days. Reheat beef and vegetables in a skillet over medium heat with a splash of water, stirring until the thickest pieces reach 165°F (74°C); USDA FSIS recommends reheating leftovers to that temperature. Reheat rice until steaming hot throughout and 165°F (74°C) as well. Re-crisp fries in a 400°F (205°C) oven or air fryer for a few minutes, checking often; they will not be quite as crisp as freshly cooked. Freeze the beef mixture and rice for up to 2–3 months for best quality; potatoes may become soft after thawing. Thaw in the refrigerator and reheat safely.

Frequently Asked Questions

How many calories are in lomo saltado?
Calories vary with the size of the beef and rice portions, the cooking oil, and how the fries are cooked. This recipe is estimated at about 650–750 calories per serving with rice. Restaurant portions may differ substantially, especially when they include more fries or oil.

Can I make lomo saltado with fewer calories?
Use a smaller serving of rice and fries, measure the oil rather than pouring freely, and trim visible fat from the steak. You can increase the tomato and onion portion if you like, but the calorie total still depends on the full ingredients and serving size.

Is lomo saltado usually served with rice and fries?
Yes. Many versions serve both, often with the fries tossed into the beef and vegetables. Some cooks serve the fries separately to preserve their crispness, and family preferences vary.

What cut of beef works best?
Sirloin is a practical choice because it cooks quickly and is easy to slice into strips. Flank steak also works if sliced thinly across the grain. Avoid overcrowding the pan, since either cut can turn tough if it steams or cooks too long.

Can I prepare parts of the dish ahead?
Cut the vegetables and mix the sauce up to a day ahead, storing them covered in the refrigerator. You can cut the potatoes earlier, but keep them submerged in cold water in the refrigerator and dry them thoroughly before roasting. Cook the beef and fries close to serving time for better texture.

Why did my fries turn soggy?
They may have been wet before roasting, crowded on the tray, or left sitting in the sauce. Dry cut potatoes well, roast in a single layer, and keep the fries separate until serving if crispness matters.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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