- 2 tablespoons olive oil
- 1 large onion, diced
- 1 pound large shrimp, peeled and deveined
- 1 pound scallops, rinsed and patted dry
- 1 (6 ounce) can crabmeat, drained and flaked
- 1 (12 ounce) can water packed tuna, drained and flaked
- salt and pepper to taste
- 1 tablespoon seafood seasoning, such as Old Bay™
- 1 cup mayonnaise, or to taste
- 2 tablespoons yellow mustard
- 1/2 teaspoon garlic powder, or to taste
- 1 teaspoon dried oregano
- 1/2 teaspoon ground turmeric
- 2 tablespoons white sugar
- 1 large green bell pepper, chopped
- 2 stalks celery, chopped
- 5 hard-cooked eggs, chopped
- 1 hard-cooked egg, sliced
- 1/2 teaspoon paprika, as garnish
- Heat oil over medium heat in a large skillet and add onions, stirring until translucent, about 7 minutes. Add shrimp, scallops, crab meat and tuna. Cook until shrimp are pink and the scallops are opaque, 8 to 10 minutes. Season with salt, pepper, and Old Bay Seasoning. Remove from heat.
- Whisk together the mayonnaise, mustard, garlic powder, oregano, turmeric and sugar in a large bowl. Mix in the bell pepper, celery and chopped eggs.
- Add seafood and toss until evenly combined. Garnish with eggs slices and sprinkle with paprika.
- Cover and refrigerate for 2 to 3 hours or overnight before serving to let flavors blend.