In a greased deep pie dish, spread the refried beans and then layer the green chiles.
For the next layer combine the sour cream and mayonnaise and spread over the chiles. Continue layering the avocados, lemon juice, Black Bean Salsa, scallions, and cheddar cheese.
Bake for 20-30 minutes until heated through and bubbly.
Decorate top of dip with three tortilla chips forming the eyes and nose of the jack-o-lantern. Use the sliced black olives to form a mouth.