If using frozen spinach, use about 6 ounces. Defrost it, and squeeze out most of the moisture with paper towels.
If using fresh spinach, the best way to clean out the grit is to submerge the leaves into a large bowl or basin of cold water. Swirl the spinach leaves with your hands to dislodge the dirt. Drain and repeat until the leaves are clean.
- 1 lb spinach leaves (about 2 bunches), thoroughly cleaned
- 2 Tbsp olive oil
- 1 medium onion, chopped (about 1 cup)
- 1 large clove garlic, minced
- 9 large eggs
- 2 Tbsp milk
- 1/3 cup grated Parmesan cheese
- Sun-dried tomatoes, about 2 Tbsp chopped
- Salt and freshly ground pepper to taste
- 3 oz goat cheese
1 Preheat oven to 400°F.
2 Cook spinach in 1/4 cup of water in a covered saucepan until just wilted, a couple minutes. Drain water and rinse with cold water to cool. Wrap the spinach in paper towels and squeeze out as much moisture as you can. Then chop and set aside. (If you are using tender baby spinach instead of mature spinach, you don't need to pre-cook, just chop and toss with the onions in step 3 until wilted).
3 In a mixing bowl, whisk together eggs, milk, and Parmesan cheese. Add in chopped sun-dried tomatoes, and sprinkle with salt and pepper. Set aside.
4 Sauté onions in olive oil in an oven-proof, stick-free skillet, until translucent, about 4-5 minutes on medium heat. Add the garlic and cook a minute further. Mix the cooked chopped spinach in with the onions and garlic.
5 Spread out spinach mixture evenly on bottom of skillet. Pour egg mixture over spinach mixture. Use a spatula to lift up the spinach mixture along the sides of the pan to let egg mixture flow underneath.
Left: About to go in the oven; Right: Just removed from oven
6 Sprinkle bits of goat cheese over the top of the frittata mixture. When the mixture is about half set, put the whole pan in the oven. Bake for 13-15 minutes, until frittata is puffy and golden. Remove from oven with oven mitts and let cool for several minutes. Although the pan may be out of the oven for a few minutes, the handle is still very hot. To keep from accidentally picking it up by the handle while hot (speaking from experience, ouch!) take a piece of ice and melt it against the pan's handle to cool it down.
Cut into quarters to serve.