Spinach and Cheese Quiche with Caramelized Onions and Mushrooms
Quiche is a decpetively simple, wonderfully versatile dish. I used frozen spinach, thawed, rinsed, and squeezed out well in a mesh colander; crimini mushrooms; plenty of onion; and a local cheese produced by a lovely shop at Pike Place Market. Their “flagship cheese” is something like a white cheddar, with less of the peppery bite one usually associates with the sharper Cheddars and instead an almost imperceptibly tangy sharpness. Tonight, I wanted something simple and easy, but still a little classy.
1 large onion
8 oz crimini mushrooms, sliced thickly
4 t. butter
2 t. olive oil
1 box frozen, chopped spinach
1½ c. cheese (I used Beecher’s flagship cheese; any moist, easily shredded cheese that takes your fancy would work well.)
1 pie crust (either homemade or frozen will work; I opted for convenience this time)
4 eggs
½ c. milk
½ c. whipping cream
1 T sugar
1 ½ t. salt
1 t. white pepper
½ t. freshly ground black pepper
- Preheat oven to 350. Remove pie crust from refrigerator if using prepacked frozen dough.
- Prepare the onion. Slice off the top, skin, cut into quarters. Cut each quarter lengthwise into long, thin strips, then remove the root-base with a diagonal cut. Slice the mushrooms about ½” thick.
- Rinse the spinach in a wire mesh colander, squeezing it out and pressing it up against the colander to remove as much water as possible.
- Grate the cheese.
- Saute the onions in the butter and oil over high, stirring frequently, until browned but not cooked all the way through. Reduce heat to medium or med-low and add the onions, tossing to incorporate. Give it a stir every few minutes at first, and once the onions begin to darken, stir more frequently until the onions are a lovely golden brown color.
- Whisk the cream and eggs together with the sugar, salt, and pepper until extremely frothy.
- Press piecrust into pan. Fill with cheese, top with vegetable sautee, and pour egg mixture over all.
- Bake 30 – 40 minutes or until eggs are set and top is golden.