1-Step 1: Prepare the Seafood Cook the shrimp briefly in boiling water seasoned with salt and black pepper until they turn just pink, then cool them immediately under cold water to stop the cooking process. This step ensures the shrimp stay tender and ready for layering.

2-Step 2: Sauté the Vegetables In a high-sided saucepan, sauté the onion, celery, and red bell pepper in butter until softened but not browned, which helps build flavor without overpowering the seafood. Add water, salt, black pepper, and rice to the pan, bring it to a boil, then simmer until the rice is cooked, and let it stand covered to absorb any remaining moisture.

3-Step 3: Mix the Ingredients Once the rice cools, combine it with water chestnuts, half and half, mayonnaise, tomato puree, lemon juice, paprika, cayenne pepper, nutmeg, and parsley in a large bowl for a creamy base. Gently mix to keep everything even, incorporating the jumbo lump crab meat while maintaining its texture.

4-Step 4: Assemble and Bake Layer the rice mixture into the prepared baking dish, press the shrimp into the rice, add the crab, and top with the remaining mixture. Sprinkle coarse fresh breadcrumbs mixed with butter on top, cover loosely with foil, and bake for 30 to 40 minutes. Remove the foil for the last 10 minutes to crisp the topping, resulting in a bubbly, golden dish.