Combine all three cheeses and sprinkle evenly over the bottom of the pie crust. Top with the crab meat and red bell pepper. Whisk together the heavy cream, scallion, shallot, lemon zest, mustard, seafood seasoning, salt, pepper and eggs in a bowl. Evenly pour the egg mixture into the pie crust.
Bake until set, approximately 40 minutes. Let stand for 15 minutes before slicing.