Mix Ritz cracker crumbs and melted butter.
Press mixture into an 8-inch pie plate.
Saute onions with 2 T butter until clear, not brown; spoon into pie crust.
Beat eggs with milk, salt, and pepper and pour over onions.
Sprinkle with cheese and paprika.
Bake at 350 degrees F for 30 minutes or until firm in the center.