In short, we’ve taken that famous Green Bean Casserole, and re-imagined it in appetizer form! One of our trusted app suppliers forms bite-sized cups from fillo dough, then fills them with that familiar mixture of green beans, mushrooms, heavy cream, and Cheddar cheese. They sprinkle crispy fried onions on top—a finishing touch that most people would consider the distinctive mark of this holiday classic. After 7 to 12 minutes in a 400°F conventional oven, the cups are flaky and crisp, ideal for delivering all the creamy deliciousness of the Casserole filling. (Pro tip: 7 minutes in your air fryer makes for an even crispier exterior.) Serve them up on an appetizer platter before dinner and you’ll not only save space at the main table, but you’ll also please your family and guests with this fun and totally unique treat!