Veggies: Heat butter in a large skillet on Level 7 (Medium-High). Add onion, garlic, and frozen mixed veggies. Sauté for 3-4 minutes until veggies are tender. Push them to the side of the pan. Eggs: Crack eggs into the empty side of the pan. Scramble them quickly until set, then mix into the veggies.
Rice: Add the cold leftover rice to the pan. Break up any clumps.
Shrimp: Toss in the leftover shrimp and drizzle soy sauce over everything. Stir fry for 3-5 minutes until the shrimp is hot and the rice gets crispy in spots.