At 350°, preheat the oven.
In a pot, boil water. Add macaroni, oil and salt. Cook it for 5-7 minutes. After boiling of macaroni, drain the water.
In a saucepan, melt butter. Add macaroni in it and stir.
Add all the cheeses to a bowl and mix them.
Apply butter to a casserole dish and put the macaroni in it. Then, add cheeses, chopped shrimp, chopped lobster, half and half, eggs, seasoned salt and lastly, paprika.
Place the dish in the oven and bake it at 325° for 45 minutes, until it will become golden and bubbly.