Heat peanut oil over high heat in a large deep skillet or wok. Add onion and cook until lightly browned, about 2 minutes. Add hot dogs and cook until browned. Add rice and sesame oil, stir for 1 minute. Stir in ground ginger, garlic powder, kosher salt, and pepper.

Spread rice mixture into an even layer. Cook undisturbed until rice is lightly toasted, about 2 minutes. Add mixed vegetables, stir, and cook undisturbed for another 2 minutes. Push rice to the sides making space in the center.

Add butter in the center and let it melt. Crack eggs into the center and scramble. Once cooked, fold eggs into the rice mixture. Stir in rice vinegar and soy sauce. Cook for 1 minute. Remove from heat.