Melt the butter in a large skillet over medium heat, and add the green onions. Sauté them, stirring constantly, for 1 minute. Add the lobster or crab meat, and cook until it is thoroughly heated. Keep the mixture warm.

To make the lime hollandaise sauce, whirl the eggs, salt, lime zest, and lime juice together in a blender. While the machine is running, slowly add the hot melted butter. Whirl until the sauce is thick and smooth. You can keep it hot in the top of a double boiler over simmering water.

Arrange the English muffin halves on individual plates lined with lettuce. Spoon the lobster or crab mixture evenly over the muffin halves. Top with poached eggs, and spoon on the lime hollandaise sauce. Sprinkle each serving with paprika, and garnish with chopped tomato.