Heat 1 tablespoon of vegetable oil in a large skillet or wok over medium-high heat. Add the shrimp and cook for 2-3 minutes until they turn pink and opaque. Remove the shrimp from the skillet and set aside.
In the same skillet, add the remaining tablespoon of vegetable oil. Add the mixed vegetables and sauté for 2-3 minutes until they are tender.
Push the vegetables to one side of the skillet and pour the beaten eggs into the other side. Scramble the eggs until fully cooked, then mix them with the vegetables.
Add the cooked rice to the skillet, breaking up any clumps. Stir in the shrimp, soy sauce, sesame oil, garlic powder, salt, and pepper. Mix everything together and cook for an additional 3-4 minutes, allowing the rice to heat through.
Stir in the chopped green onions just before serving.