I do a recipe in muffin trays too. But I don't use any pastry, I use slices of ham instead. Place a slice (or half a slice depending on the size of the ham), in each greased muffin hole. Beat 2-3 eggs in a bowl, add a dash of milk and any other fillings you like. I usually put corn, sliced shallots (spring onions). Pour egg mix in each muffin hole and top with half a cherry tomato. Bake until nice and brown and set. Note you don't need any salt due to the ham - you can add cracked pepper if you like.