Preheat your oven to 350°F first.
Wash and clean all the shrimp thoroughly.
Chop the onions and bell peppers small.
Get all your ingredients measured and ready.
Melt butter in a medium saucepan.
Add chopped onions and bell peppers inside.
Cook them until they become soft and tender.
Add shrimp and cook for 3 minutes.
Season everything with garlic powder, salt, and pepper.
Put cooked rice in your mixing bowl.
Add the cooked shrimp mixture to it.
Pour in beaten eggs and milk slowly.
Add shredded cheese and mix everything together.
Stir until all ingredients blend well together.
Place pie crust in your pie dish.
Pour the shrimp mixture into the crust carefully.
Spread it evenly across the entire dish.
Bake for 35-40 minutes until golden brown.
Let it cool for 10 minutes before serving.