In a large saucepan of 1 ½ cups water, cook rice according to package instructions; set aside.
Season shrimp with salt and pepper, to taste.
Melt butter in a large stockpot or Dutch oven over medium high heat. Add shrimp, and cook, stirring occasionally, until pink, about 2-3 minutes; set aside.
Add onion and bell pepper to the Dutch oven. Cook, stirring occasionally, until tender, about 3-4 minutes.
Stir in red curry paste, garlic and ginger until fragrant, about 2 minutes.
Stir in coconut milk and vegetable stock, and cook, whisking constantly, until incorporated, about 1-2 minutes.
Bring to a boil; reduce heat and simmer until slightly thickened, about 8-10 minutes.
Stir in rice, shrimp, lime juice and cilantro.
Serve immediately.