My favorite quiche

2 T olive oil
1 onion, diced
1 cup baby spinach
3 eggs
1/2 cup milk
1 cup cottage cheese (or ricotta)
1/2 t salt
dash cayenne pepper (or black pepper)
1/2 cup shredded cheese
3 slices bacon, cooked and crumbled (about 2 T)

Preheat oven to 375.  Spray a 9-inch pie plate with nonstick spray.
Heat the oil in a large nonstick skillet over med-high heat.  Add the onion and cook, stirring occasionally, until tender, about 5 min.  Add the spinach and cook, stirring, until the spinach is wilted and any liquid is evaporated, 2-3 minutes.
Whisk the eggs in a large bowl until lightly beaten.  Whisk in the milk, cottage cheese, and bacon until well combined.
Pour into the prepared pie plate.  Bake until the top is golden and a knife inserted into the center comes out clean, 35-40 min.  Let stand 10 min before cutting.

I don't remember where I found this recipe, but it is good!  I double it and bake in a 9 by 13 pan.