I think yes.
This was a huge hit for dinner the other night- the husband, six-year-old, and myself polished this off with no problem, along with a big green salad. It took some time, but most of the prep could be done ahead of time for a quick meal prep later. If you pre-baked the pastry shell, and cooked the mushrooms and onions, all that would be left is piling them into the oven and baking.
This came from the November '11 edition of Everyday Food. I've marked, and tried, so many recipes from that edition- definitely shelf-worthy, with the rest of my cookbooks!
The original ingredients called for shitake mushrooms and tarragon, and parmesan cheese for dusting. Here is how I made it.
Crimini and Egg Tart
Serves 3 as main course, or six as side dish
1 sheet puff pastry, thawed
2 Tbsp unsalted butter
2 medium onions, thinly sliced
3/4 pound crimini mushrooms, cleaned
1 Tbsp. fresh thyme leaves
sea salt and ground pepper
6 large eggs
1. On a piece of parchment paper, unfold puff pastry. Cover with a sheet of cling film, and roll out to 11x14 inches. Remove cling film, and use a sharp paring knife to trim pastry edges straight. A half inch from the edge of the dough, using your paring knife, lightly cut partially through the dough. Transfer pastry, on parchment paper, to a rimmed baking sheet. Use a fork to prick all over, inside the scored border. Refrigerate 20 minutes.
2. Turn oven on to 375. In a large skillet, melt butter over medium heat. Add onions and cook, stirring occasionally, until lightly caramelized (10 to 15 minutes.) Using a large glass measuring cup, or a small fry pan, crush mushrooms lightly. Finish chopping with a knife into 1/4-1/2" pieces. Add mushrooms and thyme to caramelized onions and cook until mushrooms are soft and dark, about 10 minutes. Season with salt and pepper. Deglaze pan with a few tablespoons water, if necessary.
3. Bake puff pastry until light golden, about 15 minutes. Remove from oven and top with mushroom mixture, staying within border. Crack eggs into a small bowl or cup, and carefully pour eggs on top of mushroom mixture. Bake until whites are set and yolks are still runny (about 10 minutes) or longer if you like your eggs more cooked. I thought it was perfect after about 20 minutes.