Preheat the oven to 450˚F.
In a medium skillet, cook the bacon until almost crisp; transfer to a plate with a slotted spoon, leaving the drippings.
Chop the spinach, kale or chard and cook in the same pan for 2-3 minutes, until wilted. Remove from the heat.
Divide the dough into four pieces and stretch each into about an 8-inch circle and place on parchment-lined baking sheets.
Spread each with a spoonful of ricotta or crumble over some goat cheese, and top with the wilted greens and cooked bacon.
Bake for 5 minutes, then remove from the oven, crack an egg onto the middle of each pizza and return to the oven for 7-10 minutes, until the egg whites are set but the yolks are still runny.