Step 1: Prepare the Ingredients

• Gather all the ingredients and slice the beef, onions, tomatoes, and bell peppers.

Step 2: Cook the Beef

• In a large skillet or wok, heat 1 tablespoon of vegetable oil over medium-high heat.
• Add the sliced beef to the skillet and season with salt and pepper. Stir-fry until the beef is browned and cooked through, about 3-5 minutes.
• Remove the beef from the skillet and set aside.

Step 3: Stir-Fry the Vegetables

• In the same skillet, add the remaining tablespoon of vegetable oil.
• Add the sliced onions, garlic, and bell peppers. Stir-fry for about 2-3 minutes until the vegetables are tender but still crisp.
• Add the sliced tomatoes and cook for an additional minute.

Step 4: Combine with the Sauce

• Return the cooked beef to the skillet with the vegetables.
• Pour in the soy sauce and vinegar, stirring to combine all the ingredients.
• Cook for an additional 1-2 minutes, allowing the flavors to meld together. Adjust seasoning with salt and pepper as needed.

Step 5: Serve

• Serve the Lomo Saltado over a bed of fluffy white rice and add a side of crispy French fries.
• Garnish with chopped cilantro for a fresh finish.