01 -
Preheat your oven to 350°F (175°C).
02 -
In a large skillet, heat the vegetable oil over medium-high heat.
03 -
Add the ground beef and cook until browned, breaking it up with a spoon as it cooks.
04 -
Add the diced onion and minced garlic to the skillet and sauté until the onion is translucent.
05 -
Stir in the mixed vegetables and cook for another 2-3 minutes.
06 -
Add the cooked rice to the skillet, breaking up any clumps. Pour in the soy sauce and oyster sauce, stirring well to combine all the ingredients.
07 -
Season with salt and pepper to taste.
08 -
Transfer the mixture to a baking dish and spread it out evenly.
09 -
Bake in the preheated oven for 15-20 minutes, until the top is slightly crispy.
10 -
Remove from the oven and let it cool for a few minutes. Garnish with sliced green onions before serving.