In a large skillet or wok, heat 1 tablespoon of oil over medium-high heat. Add the prepared shrimp and cook until pink, about 2 minutes per side. Remove and set aside.
2 tablespoons vegetable oil, 1/2 pound medium shrimp
In the same pan, add the diced chicken and cook until browned and cooked through, about 5 minutes. Remove and set aside with the shrimp.
1/2 pound boneless skinless chicken breast
Add the remaining oil and the beaten eggs. Scramble until set, then push to one side of the pan.
2 large eggs, 2 tablespoons vegetable oil
Add the onion and frozen vegetables. Cook for 2–3 minutes until softened.
1 small onion, 1 cup frozen vegetables
Stir in the rice, breaking up clumps. Pour in soy sauce, oyster sauce, and sesame oil. Stir-fry for 3–4 minutes until heated through.
3 cups cold cooked rice, 3 tablespoons soy sauce, 1 tablespoon oyster sauce, 1 teaspoon sesame oil
Return shrimp and chicken to the pan, tossing to combine. Season with salt and pepper to taste.
kosher salt, black pepper
Top with green onions before serving.
2 green onions