Prebake pie shell for 5 minutes at 400 F.
Mix ham, cheese and basil leaves.
Spread mustard on bottom of prebaked pie shell. Sprinkle with ham-cheese mixture.
Beat eggs, cream and black pepper. Pour mixture over ham and cheese in pastry shell. Sprinkle with parmesan cheese.
Bake, uncovered, at 350 F. on middle rack of oven for 30 to 35 minutes until filling is set and lightly browned. Garnish with fresh basil leaves or parsley and sliced tomatoes. Serve immediately.