Heat a large pan or wok over medium heat and melt the butter.
Add minced garlic and sauté for 30–40 seconds until fragrant.
Add shrimp, salt, pepper, and paprika and cook for 2–3 minutes or until shrimp turns pink. Add lemon juice. Remove shrimp and set aside.
In the same pan, heat oil and add onions. Cook until translucent.
Add mixed veggies and cook for 2–3 minutes.
Push veggies to one side and pour the beaten eggs into the empty space. Scramble until just set.
Add the cooled rice and break apart any clumps. Stir everything together.
Add soy sauce, oyster sauce, and chili flakes. Mix well until rice is evenly coated.
Return the garlic butter shrimp to the rice. Toss gently to combine.
Add chopped green onions and taste for seasoning.
Serve hot.