good frittata !! I didn't steam the asparagus , we like it crisp, so I sauteed it with the mushrooms, added the egg mixture, cheese etc., and when the bottom was starting to cook, popped it in the oven at 350f degrees for 15 minutes, it raised up nice and puffy. No need to flip. It was a delicious quick supper thanks.
This was excellent, didn't have the mushrooms or tarragon, but made due without. Because of time constraints I didn't steam the asparagus just sauted them with the garlic and some shallots in some olive oil, took them out sprayed the pan with Pam and dumped in the eggs. Then I arranged the asparagus on top and let it cook until set. Instead of flipping the frittata I just popped it under my broiler for a couple minutes till almost done then added the cheese popped it under the broiler again for a couple more min. till the cheese was melted. Thank you for the great recipe.