Pre-heat oven to 350°.
Place the puff pastry rounds in a muffin pan.
Heat a saute pan to medium. Add the onion and bacon. Cook until browned and the onion is lightly caramelized.
Drain excess bacon fat from the pan.
In a bowl, wisk eggs with half & half, corn starch, salt and pepper.
Spoon the bacon and onion mixture into the base of the puff pastry. Add a layer of Swiss cheese. Pour on the egg mixture. Filling almost to the top.
Bake in the oven about 25 minutes.
You can also make the same kind of quiche with:
- Sautéed mushrooms (leave out bacon and onion)
- Salmon (leave out bacon and onion. Bake fresh salmon with shallots in pan and add cooked spinach)