01 -  Set oven to 400°F (200°C) or place a large skillet over medium heat. 
 02 -  Lightly toast bread slices until golden using a toaster or oven. 
 03 -  In a skillet over medium heat, melt butter. Add corn kernels and sauté for 2–3 minutes until warmed through. 
 04 -  Remove skillet from heat. Stir in mayonnaise, salt, black pepper, and paprika; mix thoroughly. 
 05 -  Evenly spread corn mixture over each toasted bread slice. 
 06 -  Sprinkle shredded cheese on top of corn mixture if desired. 
 07 -  Arrange toasts on a baking sheet and bake for 3–5 minutes until cheese is bubbly and melted. Alternatively, cover skillet and heat for 2–3 minutes until cheese melts. 
 08 -  Garnish with chopped parsley if desired and serve hot.