Bacon, Egg & Goat Cheese Breakfast Pastries

Olive oil

onion, thinly sliced

package puff pastry, thawed overnight in the refrigerator

medium eggs* + 1 egg, lightly beaten with a few drops of water (egg wash)

rashers thick cut smoky bacon

goat cheese, crumbled

large leaves fresh basil, chopped

Freshly ground black pepper