Preheat oven to 350 degree. Spray a 2-qt. baking dish with nonstick cooking spray. Set aside.
Add flour, salt, pepper and paprika. Stir until well combined. Slowly whisk in half and half and heat until thickened. Add 1 1/2 cups cheese and stir until melted. Remove from heat and let cool for 10 minutes. Add eggs and mix until well combined.
Stir in corn and chives. Pour mixture into prepared dish. Top with remaining 1/4 cup cheese and plain panko. Bake, uncovered for 45 minutes until bubbly and lightly browned.