Fried Rice with Ground Beef and Vegetables

Ingredients:3 cups cooked rice (preferably day-old and cold)1 pound ground beef1 medium onion, chopped2 cloves garlic, minced1 cup mixed vegetables (carrots, peas, etc.)2 tablespoons soy sauce1 tablespoon  oyster sauce (optional)1 teaspoon sesame oilSalt and pepper to taste2 eggs, beaten (for scrambled eggs)Green onions, chopped (for garnish)Instructions:Prepare the ingredients:Chop the onion and mince the garlic.Measure out the  soy sauce, oyster sauce, and sesame oil.Cook the  ground beef:In a large skillet or wok, heat 1 tablespoon of oil over medium-high heat.Add the ground beef and cook until browned, breaking it apart with a spatula.Remove the beef from the skillet and set aside.Sauté the aromatics:In the same skillet, add another tablespoon of oil if needed.Add the chopped onion and minced garlic, sauté until the onion is translucent.Add mixed vegetables: