Preheat your oven to 350°F (175°C).
In a large bowl, combine the rice, shrimp, cheese, mayo, sour cream, green onions, garlic powder, salt, and pepper.
Stir until everything is well coated. Don’t be afraid to get in there with a spoon—or your hands if no one’s watching.
Pour the mixture into a greased 9x9 baking dish. Spread it out like you mean it.
Sprinkle the crushed crackers on top like fairy dust—generously and with flair.
Bake uncovered for 30 minutes, or until the top is golden and bubbly and your kitchen smells like you know what you’re doing.
Let it cool slightly before diving in, unless you enjoy burning the roof of your mouth like I do.