Wonderful portable quiches! My muffin tin's pretty deep so this recipe made 12 mini pies for me. They're very moist and I thought delicious-my husband said it tasted too healthy for him. (If I added turkey sausage and used the tortillas he'd probably love them.) Instead of oregano I used one tablespoon chopped fresh dill and one teaspoon ground nutmeg. I like that they didn't stick to the pan but may try 1-2 more eggs (or whites) to get a firmer consistency. Squeezing the fluid out of the spinach after sauteeing would help too. Will make again!