What allergens are in cheese and onion quiche?

Cheese and onion quiche typically contains several common allergens, including dairy (from the cheese and cream or milk), eggs (used in the custard filling), and wheat (from the pastry crust). Depending on the specific recipe, it may also contain allergens like gluten or soy if certain ingredients or additives are included. Always check the ingredient list for specific allergens, especially for those with food sensitivities or Allergies.