Cook the rice in a rice cooker using 4 cups of water and the chicken bouillon cube (you can also do this on the stovetop). Spread the cooked rice out on a tray to cool, fluffing it up occasionally. Optional: do this the day before and cook cold rice from the refrigerator.
In a wide frying pan or wok, heat both oils. Add onions and sauté for 2-3 minutes. Then add garlic paste and ginger paste and sauté for another 2 minutes or so.
Add marinated shrimp, followed by the frozen mixed vegetables. Sauté on medium/high until shrimp turns pink and the vegetables have softened.
Add the cooled rice and mix well.
Add soy sauce, salt, black pepper, chili garlic sauce, sriracha, butter, and green chilies. Stir fry well for about 5-7 minutes.
Make a well in the center of the rice, spray some oil, and break 2 eggs into it. Let it set for a minute, then scramble and mix well with the rice.
Add lemon juice and 2 tbsp scallions, reserving the rest for garnish. Adjust seasonings at this point (mainly salt & sriracha).
Garnish with scallions. Serve hot and enjoy!