01 - Preheat oven to 375°F.
02 - In a 9x13 inch baking dish, combine rice, onion, half the minced garlic, 2 tablespoons melted butter, smoked paprika, salt, and black pepper. Add broth and lemon juice and stir gently to distribute ingredients evenly.
03 - Cover the baking dish tightly with foil and bake for 25 minutes to allow the rice to begin absorbing liquid.
04 - While rice bakes, mix shrimp in a bowl with the remaining garlic, 2 tablespoons melted butter, and red pepper flakes if desired.
05 - Remove the foil after 25 minutes, carefully fluff rice with a fork, and evenly arrange seasoned shrimp over the rice.
06 - Return dish to oven, uncovered, and bake for an additional 10 minutes until shrimp turn pink and are just cooked through, and rice is tender.
07 - Scatter chopped parsley over the top before serving.