Preheat oven to 350° F. In sauté pan, cook mushrooms in butter until tender. Drain in dish with paper towels. In a food processor, blend eggs, sour cream, cheeses, flour, and Tabasco.
Stir mushrooms and crabmeat into mixture poured in a 9x9-inch casserole dish. Bake 45 minutes or until inserted knife comes out clean. Quiche should be puffed and golden. Let sit 10 minutes before cutting.Serves: 8