Method
Divide pastry into thirds. Roll each piece into a 12" circle. Line 11" tart pans with dough. Prick shells. Freeze 15 minutes. Weight shell with rice or beans and bake at 450 degrees F (conventional oven) 8 to 10 minutes.
Sauté onion in butter. Set aside. Sauté spinach and garlic in olive oil until spinach is just limp. Cool slightly; combine with onion, olives, crab and feta. Place in bottom of tart shells, dividing evenly.
Beat eggs; add half and half and salt. Pour over tarts, dividing evenly. Bake at 350 degrees F (conventional oven) 50 minutes or until filling is set.