Preheat oven to 375 degrees. Coat two 12-hole mini muffins pans with cooking spray.
Combine all ingredients in a medium bowl. Spoon about 1 heaping tablespoon of mixture into each muffin cup.
Bake until bottoms are golden brown and quiche is cooked through, about 15 minutes. Cool pans on wire rack for 5 minutes, remove quiche and serve or cool completely to store. Store in refrigerator or freezer.