In a large oven-proof skillet over medium heat, warm the olive oil. Sautee the scallions until softened, about 3 minutes.
Beat the eggs in a medium bowl and add the herbs, salt, pepper and milk. Add the warm scallions and stir. If the skillet looks dry, add a touch more olive oil and allow it to warm. Add the egg mixture to the pan, allowing it to spread out evenly. You may want to pick up the skillet and roll it around a bit to make sure the egg is well-distributed.
Turn the broiler on and position the oven rack to the middle.
When the top is starting to look almost set, dot the top of the frittata with the ricotta cheese, then set the whole pan in the oven. Remove the pan when the top is lightly browned and the ricotta looks oozy. This should take no more than a minute or two. Remove the pan from the oven (do not burn yourself with the handle!) and serve immediately.
Notes
Quick Tips
1. I used the herbs listed above but feel free to add whatever you have on hand. You might try tarragon, marjoram or even cilantro if you like it.
2. If you prefer goat cheese or another soft cheese such as brie, you may use it instead of the ricotta.